Answer: D
Explanation:
Subject-verb agreement is the grammatical rule that the verb or verbs in a sentence must match the number, person, and gender of the subject; in English, the verb needs to match just the number and sometimes the person.
A is incorrect "the helpers working behind the stage comes out, too!" it would be "the helpers working behind the stage came out, too!"
B is incorrect "The dialogue spoken by the actors make the crowd roar with laughter." it would be "The dialogue spoken by the actors made the crowd roar with laughter."
C is incorrect "The people in the audience stand as the show ends." it would be "The people in the audience stood as the show ends."
Meaning D is correct.
