Final answer:
One difference between rat and mouse environmental enrichment is that rats enjoy climbing, while mice prefer burrowing. Correct option is C)
Step-by-step explanation:
One difference between rat and mouse environmental enrichment is that rats enjoy climbing, while mice prefer burrowing. Rats are known to have a natural inclination for climbing and are often provided with vertical structures such as ropes and ladders to promote their climbing behavior. On the other hand, mice are more inclined to burrow and prefer having access to tunnels or hiding spots.