Mis hermanos y yo el suelo.
a. barrimos
b. barremos
c. secaron
d. tiramos

For this case what we must do is fill in the blank with the correct conjugation of the following verb:

For this, we must keep in mind two things:

1) We are referring to the first person plural.

2) We assume that the sentence is in the present simple.

Therefore, the complete sentence in Spanish is:

Mis hermanos y yo barremos el suelo.

Mis hermanos y yo barremos el suelo.

B. barremos