Safa participated in a rep study where u of m researchers wanted to replicate cahill and mcgaugh study discussed in lecture (that looked at the effect of emotion on memory.) she was given beta blocker after viewing emotional scenes. it is most likely that the effect of the beta blocker:
a. would enhance emotional memory.
b. would enhance memory of non-emotional material.
c. would block all memory (emotional and non-emotional) of the event.
d. would block emotional memory.
d

d. would block emotional memory.                    

Explanation:

            REP study means research experience program where students learns skills and techniques from the research or activity they are doing and produces he project on the progress that they have made.

            Cahill and McGaugh study aimed to do study and research on the role of amygdala and adrenaline on the emotional memory formation in one's brain. It showed the effects of emotions on the memories.  

            Beta blocker are a kind of drug that tries to stop the stimulation of  adrenergic receptors when given. They control heart beat, blood pressure which affects the emotions. It will also prevent the emotional memory to function properly.

Thus the answer is ---

d. would block emotional memory.  

it gave them more rights