An 11-year-old girl is diagnosed with idiopathic thrombocytopenic purpura (ITP). Which parental statement helps the nurse evaluate that teaching is successful?

"Our daughter should avoid drugs containing sulfonamides."

"Our daughter will need genetic counseling before she marries."

"When our daughter's hemoglobin falls below 3.5, she'll need blood."

"Our daughter can still be involved in gymnastics."