According to the Safe Drinking Water Act, Which of the Following

According to the Safe Drinking Water Act, which of the following drinking water standards must be established by the Environmental Protection Agency for drinking water contaminants?

A) primary standards to protect human health and secondary standards to protect aesthetic quality of drinking water
B) primary standards to protect agriculture and secondary standards to protect recreational water
C) primary standards to protect recreational water and secondary standards to protect human health
D) primary standards to protect water used for health care facilities and secondary standards to protect water used by commercial establishments