In Watson's studies, which of the following was found to impair rats' ability to navigate through mazes they had previously learned? A) blinding the rats C) eliminating all odors in the mazeB) removing the rats' whiskers D) rotating the maze

Letter D is the correct answer.

J. B. Watson was an American psychologist considered to be the father of Behaviorism. In his studies with rats and maze-learning, also known as the Kerplunk experiment, Watson found out that rotating the maze impaired the rat's ability to navigate through them even if they previously had learned how.