Vitamins

To solve the problem, we need to identify which of the vitamins listed are fat-soluble.

1. Understanding Fat-Soluble Vitamins:
Fat-soluble vitamins are those that are soluble in fats and oils and are absorbed in the intestines with the help of lipids. The main fat-soluble vitamins are A, D, E, and K. These vitamins are stored in the liver and fat tissue.

2. Analyzing the Options:
- Vitamin A and Vitamin D are both fat-soluble vitamins.
- Vitamin B and Vitamin C are water-soluble vitamins and not fat-soluble.

Final Answer:
The fat-soluble vitamins are A and D (Option D).

To solve the problem, we need to identify the vitamin whose deficiency leads to fertility disorders.

1. Role of Vitamin E:
Vitamin E is a fat-soluble antioxidant that plays a crucial role in: - Protecting cell membranes - Supporting immune function - Preventing oxidative damage in reproductive tissues
Its deficiency is known to cause reproductive issues and fertility disorders, particularly in animals and humans.

2. Elimination of Other Options:
- Vitamin A: Essential for vision and immunity.
- Vitamin B: Includes a complex of vitamins mainly involved in metabolism and energy.
- Vitamin D: Important for bone health and calcium absorption.

Final Answer:
Deficiency of leads to fertility disorders.