which of the responses is (are) correct. A low dose of perindopril is used because?

pharmacy

1    the patient is elderly

2    the risk of dehydration is very high

3    perindopril is being used as a prophylactic of cardiovascular events.

A    if 1, 2 and 3 are correct

B    if 1 and 2 only are correct

C    if 2 and 3 only are correct

D    if 1 only is correct

E    if 3 only is correct