A Nurse Is Teaching Environmental Control to the Parents of a Child

A nurse is teaching environmental control to the parents of a child with asthma.Which statement by the parents indicates effective teaching?

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