Final answer:
Encouraging a hospitalized child to resume schoolwork is the most beneficial intervention for supporting their development and preventing regression. It maintains normalcy and supports cognitive development, alongside the use of wireless technology for communication and learning.
Step-by-step explanation:
To minimize threats to a child's development and prevent regression while hospitalized, it is important to maintain a routine that includes educational and enriching activities, as well as social interactions. The most beneficial intervention from the options provided would be to encourage the child to resume schoolwork. This action helps to maintain a sense of normalcy and structure in the child's life, thereby supporting cognitive and psychosocial development. It aligns with the principle that physical activity and healthy eating are a fundamental part of a child's education, suggesting that overall well-being, including mental stimulation, should be a priority.
Additionally, allowing access to wireless technology devices can be helpful. It can not only aid in keeping up with schoolwork but also help the child stay connected with friends and family, which supports emotional health. Providing a variety of snacks might address nutritional needs but does little to prevent regression in development without a balance of other activities. Participating in activities with elders might be enriching in a different context, but it is not specific to a child's school-aged developmental needs.