Assertion :Type 'O' blood group individuals are called 'universal donors' Reason: RBCs of 'O' blood group have both 'A' and 'B' surface antigens.

Both Assertion and Reason are correct and Reason is the correct explanation for Assertion

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Both Assertion and Reason are correct but Reason is not the correct explanation for Assertion

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Assertion is correct but Reason is incorrect

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Both Assertion and Reason are incorrect

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Solution

The correct option is C Assertion is correct but Reason is incorrect
Persons with blood group O have no antigens on the surface of RBCs but have both the antibodies in the plasma. Hence, these can donate blood to anyone( universal donors). However, such persons can receive blood only from those persons who have blood group O.
So, the correct answer is 'Assertion is correct but the reason is incorrect'.

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