A married couple adopted a male child. A few years later, tw

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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 ???????, B ??????? ?? O ??????? ??? ????? ????? ?? ???? ????? ???

[UPSC IAS Prelims 2011]

A O positive

हे सकारात्मक!

B A positive

सकारात्मक

C B positive

B धनात्मक

D Cannot be determined on the basis of the given data

दिए गए डेटा के आधार पर निर्धारित नहीं किया जा सकता है

EXPLANATION

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