Final answer:
a. Social isolation
The main purpose of moving to a long-term care facility for the elderly is to ensure improved safety and provide a social environment that can help reduce the risks associated with isolation.
Step-by-step explanation:
The benefit or purpose of moving to long-term care facility for an elderly person is primarily improved safety. These facilities are designed to provide a safe environment for seniors who may need assistance with daily living activities or have health issues that require constant monitoring. Additionally, long-term care facilities offer the advantage of resocialization, where the elderly can enjoy companionship and engage in various social activities, reducing the risk of social isolation which is often a concern for aging individuals living alone.