If We Know That Jon Left School After the Eighth

If we know that Jon left school after the eighth grade and has been working as a janitor for the past twenty years, what research-based predictions could we make about his health status?

A) Jon is more likely to have chronically low levels of cortisol.
B) Jon is more likely to die at an earlier age than those in higher-status jobs.
C) Jon is less likely to develop heart disease because his job involves less stress.
D) If Jon has children, they will be less likely to die in infancy.