A. Vitamin B12
A.
B. Vitamin C
B.
C. Vitamin K
C.
D. Vitamin D
D.
Correct Answer: A
সঠিক উত্তর: A
Explanation
ব্যাখ্যা
Vitamin B12 is essential for the production of red blood cells. A deficiency in vitamin B12 can lead to anemia, a condition characterized by fatigue, weakness, and pale skin.