Por la noche, nosotros ASISTIMOS a conciertos y fiestas muy divertidas.
We use ASISTIMOS when talking about WE.
Well most likely D. because you are suppose to use the masculine form with masculine nouns. It can also be C.
Answer:
conjugation is very important in Spanish because verbs can change their form to match the subject of the sentence. For most verbs, there are six different form you could use depending on the subject the verb is paired with!