Multiple choice general knowledge math & puzzles

Another evidence is intercepted Morse Code transmissions. Which reveal the first letter of the Spy's surname. This letter looks identical to the capitalised version of the Greek letter upsilon (pronounced ipsilon). Which letter?

  1. Y

  2. E

  3. I

  4. U

Reveal answer Fill a bubble to check yourself
A Correct answer
Explanation

The Greek letter upsilon (uppercase Υ, lowercase υ) looks identical to the Latin letter Y in its capitalized form. This is the correct answer. E, I, and U are different letters in both Greek and Latin alphabets.