A Parent Tells the Nurse, "The Doctor Says My Son

A parent tells the nurse, "The doctor says my son has epilepsy, but he has never had a convulsion. How can that be?" Which response by the nurse to the parent is the most appropriate?

A) "He will probably develop convulsions as he gets older."
B) "Some children with epilepsy do not have seizures."
C) "Convulsions are not part of all epileptic conditions."
D) "The convulsions common in young boys are usually silent."