Which of the following conditions can be caused by a deficiency of Vitamin A?

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Dry skin (xeroderma)Dryness of the eyes leading to blindness (xerophthalmia)Cone-shaped corneal ulcers (conical ulceration)All of the above conditionsNone of these

Explanation

Vitamin A deficiency can lead to several health issues including xeroderma (dry skin), xerophthalmia (dryness and damage to the eyes), and conical ulceration (a type of corneal ulcer). Therefore, all the listed conditions are associated with a lack of Vitamin A.