Final answer:
D) Vitamin D. Vitamin D is the vitamin that plays an important role in the body's absorption of calcium.
Step-by-step explanation:
The Vitamin D plays an important role in the body's absorption of calcium.
When sunlight hits the skin, it triggers the production of vitamin D. This vitamin helps the intestines absorb calcium from the diet. It also plays a crucial role in maintaining adequate levels of calcium and phosphate in the blood.
Without enough vitamin D, the body cannot fully absorb calcium, leading to weak bones and a condition called rickets in children and osteomalacia in adults.