Multiple choice general knowledge science & technology

What is the most common blood type?

  1. B +

  2. O -

  3. A -

  4. O +

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

O positive (O+) is the most common blood type in the global population, found in approximately 37-40% of people. O negative is the universal donor but is much rarer, while A and B types are less frequent than O+.