A Alicia le gustan los deportes
Bolsa tells Sancho to continue talking in order to find out the truth, because they are playing the detectives roles.
The closest answer to being correct is A., "Compartes la paella?"
It might be the difference between "proper" Spanish and what I know, but even that seems like it's wrong. If anything, I would ask "Compartirás la paella?"
But A. is your answer
For this case we can translate the sentence given as:
What___________ in the market yesterday?
The sentence must be completed with the proper conjugation of the verb "buy" ("comprar" is Spanish)
From the simple perfect preterite we have:
Yo compré
Tú compraste
él/ella/Ud. compró
nosotros compramos
vosotros compramos
ellos/ellas/Uds. compraron
The sentence is in the second person singular, so the correct option is "compraste"
Answer:
Qué compraste en el mercado ayer?