MCQ
The $RBC$ deficiency is deficiency disease of :
- ✓Vitamin $\mathrm{B}_{12}$
- B$\operatorname{Vitamin} \mathrm{B}_{6}$
- C$\operatorname{Vitamin} \mathrm{B}_{1}$
- DVitamin $\mathrm{B}_{2}$
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