Answer:
The answer is C. It could not explain higher-level cognitive processes.
Step-by-step explanation:
One of the main reasons why the behaviorist perspective lost its appeal and other perspectives, such as humanism, gained more strenght, is that, by explaining human behavior only in terms of responses to a stimulus, it failed to explain higher-level cognitive processes. It didn't provide the theoretical tools to analyze behavior that was not motivated by a stimulus or a reward or behavior that took place even after knowing that their would be a punishment.