Answer:
b. salió
Explanation:
El sábado pasado means last saturday in English which indicates that it happened in the past. According to this, the verb salir has to be conjugated in past tense and mi hermano (my brother) means that the pronoun is el which means he in english. So, the conjugation of the verb salir (go out in English) in the past tense is:
Yo salí
Tu saliste
El/ella salió
Nosotros salimos
Ellos/Ellas salieron
This means that the correct form of the verb is salió.
