A 4-Year-Old Child Tells Other Children That Last Night He

A 4-year-old child tells other children that last night he flew to the moon and walked around with his friend Sam. He says that he is the only one who can see Sam. The nurse should:

A) warn the child's mother that he may be developing emotional problems.
B) interrupt the conversation with a comment that children can't fly to the moon.
C) take the child aside and tell him gently that he should stop telling such stories or people will not trust him.
D) recognize that imaginary friends and fantasy are normal at this age.