Which vitamin plays a crucial role in the maintenance of healthy epithelial cells and the integrity of mucous membranes?

A Vitamin A
B Vitamin C
C Vitamin E
D Vitamin K
Vitamin A is essential for maintaining healthy epithelial cells and mucous membranes, and its deficiency can lead to impaired night vision, dry skin, and increased susceptibility to infections.
National Institute of Nutrition
Vitamins Nutrition Fat-Soluble Vitamins Easy MEDICAL Confidence: high