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SSC CPOSSC CPO Hard Mock Set 5Hard GK

SSC CPO Mock Test Set 5, Q89: Identify the correct answer for universal donor blood group in basic ABO-Rh system.

A. B negative
B. O negative
C. AB positive
D. A positive
Correct Answer: B. O negative
Explanation: O negative is commonly called universal donor. Category: SSC CPO. Set: 5.
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