Read the following sentences.
Mazy and Diane finished their project. Mazy and Diane then went to play.
Which option correctly combines the two sentences into a new sentence with a compound subject and predicate?
Group of answer choices
Mazy and Diane finished their project they then went to play.
Mazy and Diane finished their project and then went to play.
Mazy finished her project and went to play. Diane finished her project and went to play.
Mazy finished her project, Diane finished her project they then went to play.