a phrase is necessary to the meaning of a sentence. restrictive nonrestrictive relative appositive

a phrase is necessary to the meaning of a sentence. restrictive nonrestrictive relative appositive
Answer
Brief Explanations:
A restrictive phrase defines or limits the meaning of the word it modifies and is essential to the sentence's meaning. Non - restrictive phrases are not essential and are set off by commas. Relative phrases start with relative pronouns and can be restrictive or non - restrictive. Appositive phrases rename a noun and can be restrictive or non - restrictive. Since the phrase is necessary to the meaning of the sentence, it is restrictive.
Answer:
A. restrictive