Which vitamin is essential for the intestinal absorption of calcium and is synthesized in human skin upon exposure to sunlight?

Which of the following vitamins are fat-soluble? (a) Vitamin A (b) Vitamin D (c) Vitamin E (d) Vitamin B complex

Consider the following statements regarding the biological functions and protective impacts of Vitamin E: I. As an antioxidant, Vitamin E protects body cells from oxidative damage and prevents the premature aging of cells. II. It is a water-soluble vitamin, which necessitates its daily consumption to maintain normal nerve functioning and muscle coordination. III. Its protective impact extends to the blood, where it prevents the breakdown of red blood cells (hemolysis) that could otherwise lead to mild anemia. IV. The most active functional form of this vitamin in the human body is alpha-tocopherol. Which of the statements given above are correct?