Potential Blood Donors May Be Disqualified If They (Check All

Potential blood donors may be disqualified if they (check all that apply)
i. have recently travelled out of the country.
ii. are on medications or have taken drugs.
iii. live a sexually promiscuous lifestyle.
iv. on a diet or have been fasting.

A) i, ii, and iii
B) i, iii, and iv
C) ii, iii, and iv
D) i, ii, and iv