The term RH factor refers to (a)Rhesus factor (b)Rheumatoid factor (c)Renal factor (d)Rhombic factor
Option A) Rhesus (Rh) factor is an inherited protein found on the surface of red blood cells. If your blood has the protein, you're Rh positive. If your blood lacks the protein, you're Rh negative. Rh positive is the most common blood type
