Q: What learns to behave through playing?\nOptions:\n- (A) otters\n- (B) bacteria\n- (C) viruses\n- (D) rocks\n- (E) lions\n- (F) animals\n- (G) humans\n- (H) Birds
Let's think step by step below.

User
Playing is just one of many ways that mammals and other animals learn how to behave. Mammals include lions, bears, dogs, horses, cattle and antelopes. Playing is one way that lions learn how to behave.
Thus, the answer is (E).
Assistant