You hear: ¿les vas a servir sopa a los clientes? you read: sí, se la voy a servir. no, no se lo voy a servir. you select: sí, se la voy a servir.

For this case we have the following question:

Are you going to serve soup to customers?

In this case, we want to find an affirmative answer to the question.

Among the options there is an affirmative answer and a negative answer.

Selecting the affirmative answer we have:

Yes, I will serve it.

The translation of the dialogue with affirmative answer in Spanish is:

- ¿les vas a servir sopa a los clientes?

- sí, se la voy a servir.

We select an affirmative answer to the question:

- ¿les vas a servir sopa a los clientes?

- sí, se la voy a servir.