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SSC GD CONSTABLESSC GD CONSTABLE Hard Mock Set 4Hard GK

SSC GD CONSTABLE Mock Test Set 4, Q39: Identify the correct answer for universal donor blood group in basic ABO-Rh system.

A. AB positive
B. A positive
C. B negative
D. O negative
Correct Answer: D. O negative
Explanation: O negative is commonly called universal donor. Category: SSC GD CONSTABLE. Set: 4.
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