Wendell always gets anxious before taking a math test because he is not good with numbers and formulae. When his science teacher announces a physics test that requires him to apply numerical formulae, Wendell begins to feel anxious, even though he enjoys physics. What is Wendall most likely demonstrating in this scenario?
A. positive reinforcement in operant conditioning
B. generalization in classical conditioning
C. discrimination in classical conditioning
D. negative reinforcement in operant conditioning