discuss-forum?question_id=206364-BD-Merit-Freelancing,-BCS,-Bank,-Primary,-Admission,-NTRCA

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1.

A. ${}_{1}^{2}H$
B. ${}_{1}^{2}H$
C. ${}_{1}^{2}H$
D. ${}_{1}^{2}H$

Answer: Option D

Explanation:

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