The Mother of a 2-Year-Old Is Concerned Because Her Son

The mother of a 2-year-old is concerned because her son has had three ear infections in the past year.Which of the following would be an appropriate response by the nurse?

A) "It is unusual for a small child to have frequent ear infections unless there is something else wrong."
B) "We need to check the immune system of your son to see why he is having so many ear infections."
C) "Ear infections are not uncommon in infants and toddlers because they tend to have more cerumen in the external ear."
D) "Your child's eustachian tube is shorter and wider than that in an adult,which allows infections to develop more easily."