Question

Which answer is an appropriate response to this question? ¿Qué hora es?De la una.En la una.A la una.Es la una.

Answer 1

Last choice, Es la una.

Answer 2

“Es la una” will be your answer.
This is why:

The question is saying “What time is it?” When translated. You must answer with “its 1pm” which is the translation of “es la una”