The correct answer is option 1: Vitamin A deficiency. Dim-vision in the evening and night, also known as night blindness, is a condition where the individual experiences difficulty seeing in low-light conditions. This condition is associated with a deficiency of Vitamin A.

Vitamin A is an essential nutrient that plays a crucial role in maintaining good vision. It is required for the proper functioning of the retina, a light-sensitive tissue in the eye responsible for converting light into electrical signals that are sent to the brain for visual recognition. Vitamin A deficiency can impair the ability of the retina to adapt to low-light conditions, leading to night blindness.

While options 2, 3, and 4 (Vitamin E, Vitamin B12, and Vitamin C) are also important for overall health, they are not specifically linked to night blindness. Vitamin E is a powerful antioxidant that helps protect cells from damage, Vitamin B12 is important for nerve function and red blood cell production, and Vitamin C is vital for immune function and collagen synthesis. However, none of these vitamins have a direct impact on night vision.