According to Existing Studies,why Did the Elderly Who Received More

Multiple Choice

According to existing studies,why did the elderly who received more Social Security have higher mortality rates than the elderly who received less Social Security and had to work part-time?

A) Those who worked were still married.
B) Those who worked had to have transportation; thus, they were more likely to be able to visit health care professionals.
C) Those who received more Social Security were more likely to take life risks, like gambling or eating unhealthy foods, because they had more leisure time.
D) Working had a positive impact on their longevity due to social interaction.