Question

1. ¿de dónde son ustedes?

○ hasta luego, marta.
○ soy de guatemala.
○ somos de ecuador.

Explanation:

The question asks "Where are you all from?" (plural "ustedes"). The correct response must match the plural subject. "Somos de Ecuador" uses the plural verb "somos" to correspond to "ustedes", while the other options are singular or an unrelated farewell.

Answer:

O Somos de Ecuador.