The correct answer is option D. inherited characteristics.
Explanation:
B.F Skinner was an American psychologist and behaviorist who is most influential. He developed the theory of operant conditioning which states that response tendencies are acquired by observational learning, life experiencing and operant conditioning. It is developed or determined by its punishments and reinforcement of the behavior of an individual.
Thus, the correct answer is option D. inherited characteristics which are governed by birth.