Muy inteligente. a. eran b. era c. fueron d. fue

Eloisa ERA muy inteligente.

Explanation:

The correct answer is B. ERA: Eloisa ERA muy inteligente.

Remember! The way that you conjugate the verb can change the entire meaning of the sentence:

FUE: It is an action that is totally ended. It is a "perfective conjugation".ERA: It is an action that is already ended too, but when it was happening it was continuous. It is a "non-perfective conjugation".

In our example the difference is:

“ERA” is used when you want to express that the action codified by the verb had a duration at the moment that was happening; at this respect, it is different to say:

Eloisa ERA inteligente (she was being intelligent for some time; for example: she was an intelligent woman)

Eloisa FUE inteligente (she was intelligent in a specific moment, for example: she was intelligent in primary school).

El planeta es de nosotros
the answer is d. el

The answer is b.a, c, and d are not correct