Question

the function of vitamin d is
a to help with blood clotting
b to help with smiling
c to help carbohydrate use and the nervous system
d to maintain bones and teeth and helps with calcium

Explanation:

• Option A: Vitamin K is related to blood clotting, not Vitamin D. So A is incorrect.
• Option B: Smiling is a muscular and neural action, not related to Vitamin D's function. So B is incorrect.
• Option C: Vitamins like B vitamins are related to carbohydrate use and nervous system, not Vitamin D. So C is incorrect.
• Option D: Vitamin D helps in calcium absorption and is essential for maintaining bones and teeth health. So D is correct.

Answer:

D. to maintain bones and teeth and helps with calcium