When the Newly Admitted 2-Year-Old Who Was Potty-Trained Before Admission

When the newly admitted 2-year-old who was potty-trained before admission begins to wet the bed,the mother is frightened.The nurse can allay anxiety by saying:

A) "Don't be concerned.Accidents happen."
B) "Let's put a diaper on your child until this gets better."
C) "The stress of hospitalization makes children regress a little."
D) "Your child will relearn 'potty-training' if you are patient."