Scientists at a Major University Have Isolated a Chemical from Grapes.Which

Multiple Choice

Scientists at a major university have isolated a chemical from grapes.Which of the following features is an indication that this chemical could be a vitamin?

A) The chemical is in grapes,cherries,and tomatoes.
B) When a person's diet lacks the chemical,his or her body experiences abnormal functioning.
C) The chemical has a very limited range of safe intake.
D) When large amounts of the chemical are consumed,no health problems occur.