Final answer:
The mother needs further teaching because boiling the nipples and pacifiers for twenty minutes is not the recommended method for cleaning them to prevent oral candidiasis.
Step-by-step explanation:
The correct answer is B) "I will boil the nipples and pacifiers for twenty minutes."
This statement indicates that the mother needs further teaching because boiling the nipples and pacifiers for twenty minutes is not the recommended method for cleaning them to prevent oral candidiasis. Boiling the nipples and pacifiers for too long can cause damage and may not effectively kill the Candida fungus. It is recommended to clean nipples and pacifiers with water and soap, or by using a dishwasher.