Which of the following statements about the role of the neurotransmitter dopamine in operant conditioning are true?
A) Dopamine is not involved in the reinforcement process of operant conditioning.
B) Increased dopamine levels are associated with the anticipation of rewards in operant conditioning.
C) Dopamine has no influence on the motivation to engage in operant behaviors.
D) Dopamine levels remain constant regardless of reinforcement or punishment in operant conditioning.
