In Humans, the Genes for Blood Type a and B

Multiple Choice

In humans, the genes for blood type A and B show lack of dominance to one another and both dominate O. Two type O people would be able to have

A) 1 O: 1 A: 1 B: 1 AB type children.
B) only O type children.
C) 1 O: 1 A type children.
D) only AB type children.