Which is the richest country of the world
C
Correct answer
Explanation
Luxembourg consistently ranks as the richest country in the world by GDP per capita. As a small European nation with a strong financial sector and favorable tax policies, Luxembourg's GDP per capita significantly exceeds that of much larger economies like the USA, UK, or Canada. When measuring by total GDP (not per capita), the USA and China would top the list, but per capita wealth is the standard metric for comparing national wealth.