Answer:
Option B
Explanation:
John Watson theory was basically on behaviorism, and the application of this behaviorism by the child to his environment.
John believes that the interaction of child with the society is dependent on the child behaviors.
If i was the a graduate student, for me to have my supervisor who is strongly influenced by John. B Watson, i will chose option B as my choice of research because it suites the theory of John B. Watson who has influenced my supervisor with his papers