Michael Is Concerned Because His Three-Year-Old Daughter Paige Has Had

Michael is concerned because his three-year-old daughter Paige has had diarrhea for one week. Paige's diet has not changed recently; however, Michael did hear that some of the other children at Paige's day care have also had diarrhea. What would you say to him?

A) He should not worry unless the diarrhea continues for at least one month.
B) He should watch her closely and take her to the doctor if he sees signs of severe dehydration.
C) He should stop feeding her milk because the diarrhea is due to allergic reaction to cow's milk.
D) He should have her tested for ulcerative colitis because the diarrhea has lasted longer than two days.