When teaching a parent about the administration of digoxin elixir to a 4-year-old child, which of the following instructions should the nurse include?

A. Giving water after digoxin elixir helps rinse the mouth and teeth, reducing the risk of tooth decay caused by the sweetened solution. B. Digoxin should not be administered with high-fiber foods, as fiber can decrease its absorption. C. The nurse should hold digoxin if the heart rate is below 70 BPM in children, not above. D. Household spoons are inaccurate for dosing; an oral syringe or calibrated device should be used.