Question

Which type of sentence is a command or request and uses either a period or an exclamation point?

Answer 1

The correct option is D

Sentences are a word or a set of words with coherent meaning, and imperative sentences are those whose function is to exhort, incite or send another person to do something, they do so explicitly by resorting to the imperative mode of verbs.

Answer 2

The type of sentence that expresses a command or request that uses either period or exclamation point is called an imperative sentence. Examples are  :you clean your room or Go inside you room or in other form, I warn you. Do not go there!