Which of the Following Statements Is True of Riboflavin

Multiple Choice

Which of the following statements is true of riboflavin?

A) Insufficient intake of riboflavin in pregnant women causes neural tube defects in the fetus.
B) Riboflavin toxicity causes a disease known as beriberi.
C) Riboflavin deficiency does not cause any adverse effects on the body.
D) Riboflavin is a precursor of vitamin A.
E) Ultraviolet light and irradiation destroy riboflavin.