Currencies and Exchange Rates

The Maastricht Treaty, signed in 1992, established the European Union and created the framework for the Economic and Monetary Union that introduced the euro. It set specific convergence criteria that countries had to meet to adopt the single currency. The treaty came into force in 1993, leading to the eventual launch of the euro in 1999.

Dirham is the official currency of Morocco. While several countries use the dirham (including UAE, Qatar, and others), Morocco is the only option listed where dirham is the currency.

The Kuwaiti Dinar (KWD) is the highest-valued currency in the world, consistently trading at around 3.25 USD per KWD. Kuwait's substantial oil reserves and stable economy contribute to its currency's strength. The Euro, US Dollar, and Latvian Lats (now replaced by Euro) have lower values relative to the Kuwaiti Dinar.

Sri Lanka uses the Sri Lankan Rupee (LKR) as its official currency. The rupee is also used by other South Asian countries including India, Pakistan, Nepal, and Indonesia (as rupiah). Dinar is used in Middle Eastern countries, Dollar is a generic currency name used by many nations, and Franc is used in some African countries.

The primary purpose of currency is to serve as a medium of exchange, facilitating transactions by eliminating the inefficiency of barter. While money can also act as a store of value and standard for deferred payments, its fundamental function is enabling exchange.

The Turkish Lira (TRY) has been Turkey's official currency since the Ottoman Lira was replaced. In 2005, Turkey removed six zeros from the currency and introduced the 'New Turkish Lira', which reverted to 'Turkish Lira' in 2009. The other options are fictional currencies.

Like most decimal currencies, the Australian dollar is divided into 100 cents. This is standard among countries using decimal currency systems - the dollar (or equivalent main unit) equals 100 smaller units (cents). The options 200, 1000, and 50 are all incorrect divisions of a dollar.

Drachma was the official currency of Greece before the country adopted the Euro in 2001 (with physical Euro circulation starting in 2002). Greece was one of the original 12 countries to adopt the Euro. "Thai Bhad" and "Rupaiha" appear to be misspelled or fictitious names unrelated to Greek currency.

The Shekel (also spelled Sheqel) is the official currency of Israel. While the spelling 'Shequel' in the question appears to be a variant, it clearly refers to the Israeli currency. Nairobi is a city, not a country, and neither Iran nor Iraq use the Shekel as their currency (Iran uses Rial, Iraq uses Dinar).

The Pula is the currency of Botswana, introduced in 1976. It means 'rain' in Setswana, reflecting the importance of water in this semi-arid country. Brazil uses Real, Belgium uses Euro, and Belarus uses Ruble.

Cyprus adopted the Euro as its official currency in 2008, replacing the Cypriot pound. Cyprus is a member of the European Union and uses the Euro like most other EU countries. The Ruble is Russian currency, Dollar is used by US and others, and Pound is used by UK and some others, but not Cyprus.

China's currency is the Yuan (RMB). Yen is Japan's currency, Won is used in South Korea, and Dollar is used by multiple countries including USA, Australia, and Canada.

Cape Verde's official currency is the Cape Verdean Escudo (CVE), which has been used since the country gained independence from Portugal in 1975. One escudo is subdivided into 100 centavos. The currency is issued by the Bank of Cape Verde and is pegged to the Euro.

Estonia used the kroon (kr) as its currency from 1992 until 2011, when it adopted the euro. The kroon was subdivided into 100 senti. None of the other listed countries (El Salvador uses USD, Egypt uses pound, Ethiopia uses birr) have ever used the kroon.