Rats Raised in Environments That Had Cages Decorated with Colorful

Multiple Choice

Rats raised in environments that had cages decorated with colorful patterns and filled with platforms, ladders, and cubbyholes

A) became confused and withdrawn.
B) became more aggressive and territorial in their behavior.
C) developed a larger, heavier brain with a thicker cortex.
D) were no different in physical or behavioral characteristics than the rats raised in the standard laboratory cages.