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.

Explanation:

The Spanish question "¿Qué hora es?" means "What time is it?". The appropriate response to state the time "It is one o'clock" in Spanish is "Es la una". The other options "De la una", "En la una", "A la una" have different prepositions that don't correctly answer the time - asking question. "De la una" can be used in phrases like "desde la una" (from one o'clock), "En la una" is not a common way to state the time, and "A la una" is used more for indicating a time for an action to occur (at one o'clock).

Answer:

Es la una.