Answer:
We have homework in class. (little)
Explanation:
Tenemos is the nosotros form of tener. so you could say "nosotros tenemos" but "tenemos" works because tenemos is the only way to say the verb tener in the nosotros form so people get what you mean when you just say tenemos
A will be the answer cause it is the only one that makes sense
Yo soy muy inteligente.
The missing word is soy that mean i'm. If you have any other question send me a message, and i'll help you