The right answer is A. vamos a visitar
Mañana mis padres y yo vamos a visitar algunas universidades
vamos is the conjugation of the irregular verb ir for the first-person plural (nosotros) in the simple present. In Spanish, the simple present tense (el presente or el presente de indicativo) is used to talk about habitual actions or routines. In this way, Mañana mis padres y yo can be replaced by the pronoun nosotros. Accordingly, the translation of this sentence is:
My parents and I are going to visit some universities tomorrow.
