A Young Boy Has Just Been Diagnosed with Duchenne Muscular

A young boy has just been diagnosed with Duchenne muscular dystrophy (DMD) . The nurse evaluates that teaching has been effective when the parent makes which statement?

A) "We should avoid getting a wheelchair for as long as possible."
B) "He should improve over time as the medication begins to take effect."
C) "He should not have an influenza vaccine."
D) "Even though his body is weak, his cognitive abilities should be normal."