Me gusta la música flamenca. sirve escuchar. a. por b. para que c. porque d. para. the answer is d. para

For this case we can translate the sentence as:

I like flamenco music. It serves listen.

We must complete the sentence with the most appropriate connector. We have the following options:

-By

-For what

-Why

-To

It is observed that the most appropriate option to complete the sentence is "to".

Finally we have:

I like flamenco music. It serves to listen.

Me gusta la música flamenca. Sirve para escuchar.