Which of the Following Statements Is FALSE

Which of the following statements is FALSE?

A) Older people aged 70 and over are encouraged to increase their dietary calcium intake through food for bone health and fracture prevention.
B) Long-term magnesium deficiency may have adverse effects on brain function, nerve and muscle function, the digestive system and bone density.
C) Even though selenium is widely present in foods, its deficiency may result from poor diets or eating disorders.
D) Fluorosis or fluoride toxicity can develop if fluoride content of drinking water exceeds 1 mg/L.
E) Although chromium is involved in the amplification of insulin action, its role in the prevention of type 2 diabetes is uncertain.