The Nurse Is Preparing an Educational Session on Phenylketonuria for a Family

The nurse is preparing an educational session on phenylketonuria for a family whose neonate has been diagnosed with the condition. Which statement by a parent indicates that teaching was effective?

A) "This condition occurs more frequently among Japanese people."
B) "We must be very careful to avoid most proteins, to prevent brain damage."
C) "Carbohydrates can cause our baby to develop cataracts and liver damage."
D) "Our baby's thyroid gland isn't functioning properly."