21. What is the expected genotype ratio of children from the two parents shown below?

A) 50% : 25% : 25%

B) 50% : 25% : 25%

C) 25% : 25% : 25% : 25%

D) 25% Type AB: 25% Type A: 25% Type B : 25% Type O

E) 25% Type A: 50% Type AB: 25% Type B

F) 100% Type AB