steinlala

Two group of people were born at the same time. In the first group, five infants died at age of 1. The other 5 died at the age of 79. The average age at death for the group is 40 years old.
In the second group, all ten people died at the age of 80. The average age at death is 80. In group one, what age do you consider is an old age? 79. Not 40.

C supports the argument in that it links the increase in life expectancy to the LONGER years a person can live today than in 19th century. If C is true, then in 19th century, most people died at the age of 40, which is the prime time in today's standard. C is relevant to the argument.