Which Patient Statement to the Nurse Indicates a Need for Additional

Which patient statement to the nurse indicates a need for additional instruction about taking oral ferrous sulfate?

A) "I will call my health care provider if my stools turn black."
B) "I will take a stool softener if I feel constipated occasionally."
C) "I should take the iron with orange juice about an hour before eating."
D) "I should increase my fluid and fiber intake while I am taking iron tablets."