Which of the following is a purpose of Vitamin A?

Vitamin A plays a crucial role in various biological functions, but its primary contribution among the provided choices is related to vision and the maintenance of epithelial tissues, rather than bone and tooth development. However, it does contribute indirectly to growth and development, which includes supporting the health of other tissues in the body.

While the option stating bone and tooth development might seem appealing, the central purposes of Vitamin A are more aligned with its role in the health of the eyes, supporting immune function, and acting as an antioxidant. It is important for maintaining the integrity of mucosal surfaces and promoting cell growth, which all indirectly impact proper development, including that of bones and teeth.

The role of Vitamin A in protecting cell membranes, preventing nutrient deficiencies, and enhancing energy metabolism also holds significance. For instance, it does contribute to the protection of epithelial cells, which aligns with the membrane function, but the more predominant roles do not strictly encompass the development of bone and teeth as the primary function.

Thus, while the response regarding bone and tooth development hints at the broader perspective of Vitamin A's involvement in growth and maintenance of various tissues, it's essential to recognize that its most critical roles focus on vision, immune health, and epithelial integrity rather than directly fostering bone and tooth development.