Xerophthalmia is seen due to:

Correct option is B

Xerophthalmia is a severe eye condition caused by Vitamin A deficiency, leading to dryness, night blindness, and in severe cases, corneal ulceration.
· (a) Congenital anomaly – Incorrect, as xerophthalmia is a nutritional deficiency disorder, not a congenital anomaly.
· (b) Vitamin A deficiency – Correct answer, as lack of Vitamin A leads to impaired vision and dryness in the conjunctiva and cornea.
· (c) Vitamin D deficiency – Incorrect, as Vitamin D deficiency causes rickets and osteomalacia, not xerophthalmia.
· (d) Iodine deficiency – Incorrect, as iodine deficiency leads to goiter and hypothyroidism, not eye disorders.