A Child Has Been Diagnosed with Ascariasis (Roundworm)

A child has been diagnosed with ascariasis (roundworm) .Which statement made by her mother that may suggest a cause for her condition?

A) "I've been airing out the house on these nice breezy days."
B) "My child often goes out to the garden and pulls up a carrot to eat."
C) "She runs barefoot so much I have to wash her feet at least twice a day."
D) "We just remodeled our bathroom at home."