Home ยป What should be the blood types of parents in the children having only A and B types of blood? Circulatory System MCQs What should be the blood types of parents in the children having only A and B types of blood? April 22, 2022 8 Views Q. What should be the blood types of parents in the children having only A and B types of blood? A. A and O B. AB and A C. (c).AB and O D. A and B Answer: AB and O