Multiple choice

Which blood type can donate to all other blood types? (Universal donor)

  1. A

  2. B

  3. AB

  4. O

Reveal answer Fill a bubble to check yourself
D Correct answer
Explanation

Individuals with blood type O (specifically O negative) are considered universal donors because their red blood cells do not have A, B, or Rh antigens on their surface, preventing an immune response in recipients of any blood type.