A nurse teaching the parents of a 10-month-old infant about home safety. Which of the following information should the nurse include in the teaching? (Select all that apply.)

A. Accordion-style gates can pose a strangulation hazard and should not be used. B. The mattress should fit snugly against the sides of the crib to prevent the infant from becoming trapped between the mattress and crib sides. C. The water heater should be set to no higher than 49°C (120°F) to prevent scalding injuries. D. Tying plastic bags in knots before discarding them can help prevent suffocation hazards. E. Serving food in small, non-circular pieces reduces the risk of choking in infants.