Question

What best describes a clause?

a group of words does not have a subject, which performs an action

a group of words that can only serve to modify or describe another part of a sentence

an expression that includes a subject and a predicate, so it performs some sort of action within a sentence

a group of words, which is used to join two simple sentences.

Answer 1

The best description of a clause is:

an expression that includes a subject and a predicate, so it performs some sort of action within a sentence

Step-by-step explanation:

A clause is the part of the sentence which consists of a verb. A subject and a predicate are present in the clause but it does not provide a complete meaning to the sentence. It has some meaning but is not a complete sentence.

Answer 2

I think the correct answer from the choices listed above is the third option. A clause is an expression that includes a subject and a predicate, so it performs some sort of action within a sentence. A clause is the smallest grammatical unit. Hope this answers the question.