3.
Read the sentence and answer the question.
They ate lunch in the restaurant and then they took their dog for a walk in the park.
Which correctly shows where a comma is needed in the sentence?
A. They ate lunch in the restaurant and then they took their dog, for a walk in the park.
B. They ate lunch in the restaurant and, then they took their dog for a walk in the park.
C. They ate lunch in the restaurant, and then they took their dog for a walk in the park.
D. They ate lunch in the restaurant and then they took their dog for a walk, in the park.
