What is the major distinction between classical conditioning and operant conditioning

A)  In classical, you learn to respond to discriminative stimuli; in operant, you learn to respond to generalized stimuli. 
B)  In classical, you learn to avoid punishment; in operant, you learn to seek out reinforcement. 
C)  In classical, you learn to increase a voluntary behaviour; in operant, you learn to decrease a voluntary behaviour. 
D)  In classical, you learn to change a reflexive behaviour; in operant, you learn to change a voluntary behaviour.

The major distinction between classical conditioning and operant conditioning is that classical conditioning involves learning to change a reflexive behavior in response to a stimulus, while operant conditioning involves learning to change a voluntary behavior in response to consequences. In classical conditioning, the conditioned response is not under the individual's control, whereas in operant conditioning, the individual's behavior leads to reinforcement or punishment, which ultimately shapes their future behavior. Option A is incorrect because it conflates classical conditioning with discriminative stimuli, which are more closely related to operant conditioning. Option B is incorrect because both classical and operant conditioning involve learning to avoid punishment and seek out reinforcement. Option C is incorrect because operant conditioning can involve learning to increase a voluntary behavior, such as when an individual learns to perform a new skill in response to positive reinforcement.