Question

which of these is not a real blood type? a rh - c+ b b - c o+ d ab+

Explanation:

Blood types are classified based on the ABO system (A, B, AB, O) and the Rh factor (positive or negative). The Rh factor is simply denoted as Rh+ or Rh-. There is no such classification as Rh - C+. B - (B negative), O+ (O positive), and AB+ (AB positive) are valid blood types.

Answer:

A. Rh - C+