In a Study with Cocaine-Using Human Subjects in the Text,which

In a study with cocaine-using human subjects in the text,which of the following was found to be true?

A) Cues associated with heroin use elicited heart-rate increases and positive changes in mood; cues associated with cocaine use elicited heart rate decreases and positive changes in mood.
B) Cues associated with heroin use elicited heart-rate decreases and positive changes in mood; cues associated with cocaine use elicited heart rate increases and negative changes in mood.
C) Cues associated with heroin use had little effect; cues associated with cocaine use elicited heart rate increases and positive changes in mood.
D) Cues associated with heroin use had little effect; cues associated with cocaine use elicited heart rate increases and negative changes in mood.