Which of the Following Statements Is FALSE

Which of the following statements is FALSE?

A) Vitamin A (or its related compounds) is needed in a number of physiological processes such as growth, immunity and reproduction in addition to its role in visual function.
B) Calcitriol (1,25-OH vitamin D) works with calcitonin and parathyroid hormone in the control of calcium homeostasis.
C) The major role of vitamin E is to protect lipids and prevents polyunsaturated fatty acids from oxidation. Therefore, its requirement depends in some measure on the source, amount and type of dietary fat.
D) Vitamin K is needed in the synthesis of blood-clotting factors and in the maintenance of healthy bones.
E) Toxicity from fat-soluble vitamins can occur in those with malabsorption syndromes such as in cystic fibrosis.