Which sentence displays correct subject-verb agreement?

The actors in the play returns to take another bow.
The actors in the play returns to take another bow.

The dialogue spoken by the actors make the crowd roar with laughter.
The dialogue spoken by the actors make the crowd roar with laughter.

The people in the audience stand as the show ends.
The people in the audience stand as the show ends.

The helpers working behind the stage comes out, too!

The people in the audience stand as the show ends.

The sentence that displays correct subject-verb agreement is: "The people in the audience stand as the show ends."