Which blood type is considered the universal donor?
A
A
B
O negative
C
B
D
AB
Correct Answer: Option B — O negative
Explanation:
O negative blood lacks A, B, and Rh antigens, making it compatible with recipients of any blood type in emergency transfusions. This univers...
O negative blood lacks A, B, and Rh antigens, making it compatible with recipients of any blood type in emergency transfusions. This universal compatibility makes O negative blood especially valuable in medical emergencies and trauma care.