Question

1. For the verb cantar, the command form would be:

A. cantamos
B. canta
C. cantaron

2. For the verb beber, the informal command would be:

bebe
bebemos
beben

Answer 1

I believe the answer to the first question is 'canta', and the second question's answer is bebe.
Both answers are used in the correct forms and should answer the questions.

Hope this helps!:)