Question
A married couple adopted a male child. A few years later, twin boys were born to them. The blood group of the couple is AB positive and O negative. The blood group of the three sons is A positive, B positive and O positive. The blood group of the adopted son is?
A
A positive
B
B positive
C
O positive
D
Cannot be determine on the basis of the given data
Answer & Explanation
Option: [C]
