Final answer:
The areas most prone to bed sores are the sacrum, heels, and elbows due to prolonged pressure and reduced blood flow leading to tissue death.
Step-by-step explanation:
Areas most prone to bed sores are: A) Sacrum, heels, and elbows. Bedsores, also known as decubitis ulcers, develop due to prolonged pressure on these areas, particularly in individuals who are immobile for extended periods. The sacrum, heels, and elbows are bony prominences where the skin is more susceptible to breakdown when under constant pressure. Hospitals and long-term care facilities often implement practices like repositioning patients frequently to prevent bedsores. Without treatment, such as the removal of necrotized tissue, bedsores can lead to serious infections.