Final answer:
Older adults are most likely to fear dying alone, pain and suffering, leaving loved ones behind, and the unknown afterlife.
Step-by-step explanation:
The fear of death can vary among older adults, but there are several common concerns that they may have. One of the most common fears is dying alone (a). Many older adults worry about not having loved ones around them during their final moments. Another common fear is pain and suffering (b), as older adults may be concerned about experiencing physical or emotional distress as they near the end of their lives. Leaving loved ones behind (c) is also a common fear, as older adults may worry about the impact their death will have on their family and friends. Finally, the unknown afterlife (d) can be a source of fear for older adults, especially if they have uncertain or conflicting beliefs about what happens after death.