John Has Difficulty Training a Raccoon to Pick Up Coins

Multiple Choice

John has difficulty training a raccoon to pick up coins and put them in a bank. It is most likely that _________.

A) the raccoon lacks the intelligence to learn this task
B) the raccoon was contraprepared to learn this task
C) this task had to be learned during a critical period
D) raccoons lack the ability for insightful problem solving