The parents of a child being discharged from the day surgery center after insertion of tympanostomy tubes ask the nurse. "What will happen to the tubes in my child’s ears" Which of the following would be the nurse’s best response
A. "The tubes usually dissolve on their own in about 1 year. "
B. "The tubes must remain permanently in place. "
C. "You’ll probably see them fall out in about 6 months. "
D. "Call for an appointment to have them removed in about 6 months. "
是指（）