Respuesta :
Answer:
B. Oui, j'ai acheté deux robes.
Explanation:
The full conversation translates to: (Matilde) Did you go shopping yesterday? (Olga) Yes, I brought two robes.
Looking at this, the verb acheter should be in the passé composé.
The passé composé of acheter following j' is j'ai acheté. (Acheté is the past participle of acheter.)