The deficiency of vitamin A causes
-
malaria
-
night blindness
-
scurvy
-
cholera
B
Correct answer
Explanation
Vitamin A deficiency is the primary cause of night blindness (nyctalopia). Vitamin A is essential for producing rhodopsin, a pigment in the retina that enables vision in low-light conditions. Malaria is caused by parasites, scurvy by vitamin C deficiency, and cholera by bacterial infection.