Regarding Dopamine's Role in Reward and Behavior, It Is Most

Regarding dopamine's role in reward and behavior, it is most plausible that dopamine's role is to

A) provide a "reward signal" for the behavior.
B) provide a teaching cue to reinforce behaviors that lead to reward.
C) underlie muscle movements that enable an animal to obtain a reward.
D) transmit messages from the striatum to other brain regions involved in reward.
E) None of the above are accurate statements.