Your roommate tells you that because she has no time to eat healthy foods, she is taking megadoses of vitamins. You warn her that this may be dangerous, as there are vitamins that can be stored in body fat and thus accumulate in the body, which could lead to toxic levels of that vitamin. Which vitamin overdose would be most dangerous to her? A) Vitamin C
B) Thiamin
C) Folic acid
D) Vitamin D