Read the sentence.

Celebrities who help to raise awareness of significant world issues are more likely to have long-lasting bonds with their fans.

The underlined part of the sentence

needs a comma because it is a restrictive clause.
is correctly punctuated because it is a restrictive clause.
needs a comma because it is a nonrestrictive clause.
is correctly punctuated because it is a nonrestrictive clause.

1 answer

The underlined part of the sentence "who help to raise awareness of significant world issues" is a restrictive clause. Restrictive clauses provide essential information about the noun they modify and should not be set off by commas.

Therefore, the correct answer is:

is correctly punctuated because it is a restrictive clause.