A nurse is reinforcing teaching with an adolescent who has warts on his hands. Which of the following instructions should the nurse include?

A. Warts on the hands, caused by human papillomavirus (HPV), are generally benign and do not require a biopsy unless the lesion is atypical, rapidly growing, or has an unusual appearance. Routine biopsy is not indicated for common hand warts. B. Warts are highly contagious, spreading through direct contact with the wart or contaminated surfaces. This statement is inaccurate and could lead to poor preventive measures. C. Antibiotics are ineffective against viral infections. Warts are caused by HPV, a virus, so treatment usually involves topical agents, cryotherapy, or other procedures to remove or reduce the warts. D. Common warts on the hands are generally painless, though they may cause discomfort if located on pressure points or if irritated. Education should include reassurance about the benign nature and typical lack of pain, as well as information on treatment options and contagiousness.