Vitamin A comes from leafy green vegetables, orange and yellow vegetables, tomato products, fruits, and some vegetable oils. It keeps eyes and skin healthy and helps protect against infections.
Answer: vit D
Explanation:
To help strengthen bones.
It is something people can cultivate through behavior.
A lymphatic organ that helps develop the immune system is the thymus gland. The main function of this soft, roughly triangular organ is training and development of T-lymphocytes or T cells, an extremely important type of white blood cell which defend the body from potentially deadly pathogens such as bacteria, viruses, and fungi. Correct answer: B
