The Difference Between Chronological Age and Functional Age Is That

Multiple Choice

The difference between chronological age and functional age is that chronological age is ___,while functional age is ___.

A) the time between birth and puberty; the time between puberty and reproduction
B) the degree of aging in the telomeres of each cell; how active the cells are
C) what the calendar says you are; the age at which you feel and are capable of functioning
D) your physiological age; the length of time you've been functional