Which Parental Statement at the Conclusion of a Teaching Session

Which parental statement at the conclusion of a teaching session regarding environmental controls for childhood asthma indicates correct understanding of the information presented?

A) "We're glad the dog can continue to sleep in our child's room."
B) "We'll keep the plants in our child's room dusted."
C) "We'll be sure to use the fireplace often to keep the house warm in the winter."
D) "We will replace the carpet in our child's bedroom with tile."