Final answer:
The most beneficial sport suggested for a child with growth hormone deficiency is swimming, due to its low-impact nature and ability to engage multiple muscle groups without excessive stress.
Step-by-step explanation:
The nurse is reinforcing education for the parents of a child with growth hormone deficiency. Among the listed sports, swimming could be suggested as the most beneficial for the child. Swimming is a low-impact exercise that involves multiple muscle groups and joints, making it an excellent choice for children with physical growth concerns. It helps in building muscle strength, endurance, and cardiovascular fitness without putting excessive stress on the body. Moreover, swimming can be therapeutic and enjoyable, which can contribute to better mental and emotional health, aligning with the benefits of adopting a regular physical exercise habit.