Q: Why do dogs play?\nOptions:\n- (A) To keep their body heat.\n- (B) To win a fight\n- (C) it keeps an organism warm\n- (D) increases a body's strength\n- (E) To learn to behave\n- (F) allow growth\n- (G) To become dominant\n- (H) To spend time alone
Let's think step by step below.

User
Playing is just one of many ways that mammals and other animals learn how to behave. Cats are Mammals that Shed Dogs are Mammals that Wag their tails. Playing is just one of many ways that dogs learn to behave.
Thus, the answer is (E).
Assistant