​Which of These Is Correct About Relationships Between Statistics for Mortality

Multiple Choice

​Which of these is correct about relationships between statistics for mortality rates and life expectancy?

A) ​Infant mortality rates decrease average life expectancy for the population more than adult or elderly mortality rates.
B) ​Mortality rates increase as adults become older, but causes of death for the elderly are not higher than overall causes.
C) ​Elderly mortality rates decrease average life expectancy for the population more than infant or child mortality rates.
D) ​Although mortality rates are higher for elderly than younger adults, causes of death are similar for both groups.