Behaviorist Views Have Received Criticism from a Number of Other

Behaviorist views have received criticism from a number of other schools of thought. Ethologists, for example, claim that behaviorists ignore evolutionary built-in biases in learning. They also disagree with which of the following behaviorist practice?

A) The use of humans in lab experiments
B) The use of trial-and-error
C) The use of animals in lab experiments
D) The use of the operant conditioning principle