Final answer:
The leading causes of death for different age groups include heart disease for individuals over 65, unintentional injuries for individuals aged 5-24, and heart disease again for individuals aged 25-64. Option 3.
Step-by-step explanation:
The leading cause of death for individuals over the age of 65 is heart disease. This includes conditions such as heart attacks, heart failure, and coronary artery disease. Other common causes of death in this age group include cancer and stroke.
For individuals between the ages of 5 and 24, unintentional injuries are the leading cause of death. These can be caused by accidents, such as car crashes, falls, or drowning.
Between the ages of 25 and 64, the leading cause of death is also heart disease. This age group is also at risk for other conditions such as cancer, lung diseases, and diabetes.