Question

¿Cuál es una comida de España?

bachata
güiro
pupusa
tapa

I do not even understand what they are asking.

Answer 1

Taps should be your answer because popusas is a good but from El Salvador

Answer 2

Okay, I used Google Translate for this:

What is a Spanish meal?
bachata<-----Dancing
giro<-----No food involved.
pupus<-----Appetizer
tapa<----Snack

So it's either C or D, unless it's multiple, then your just fine! :)