Nine-year-old Melissa insists on locking her bedroom door when changing her clothes. Moreover, she does not change her clothes in front of her parents or siblings. It is probably best for her parents to respond to this by:
A. taking her to a qualified psychotherapist and getting her corrected.
B. affirming that everyone is entitled to privacy and recognizing that their daughter is pretty typical.
C. informing her that there is nothing to be ashamed of and they have the right to enter her room.
D. increasing the amount of adult nudity she sees so that she will know her body is normal.