If, as Daniels (2006) Says, We May Have the First

If, as Daniels (2006) says, we may have the first reversal in increasing longevity in modern life, what would happen?

A) Children would live longer but less healthy lives than their parents
B) Children would live shorter but healthier lives than their parents
C) Children would lead less healthy and shorter lives than their parents
D) Children would live longer than their parents, but would have less healthy children of their own when they become adults