Your 5'8"-Tall Grandfather Always Jokes That He Used to Be

Your 5'8"-tall grandfather always jokes that he used to be 6'2." All of the other males in your family average about 5'10" tall.You know that he is not telling the truth about his original height, because even though men lose height after age 60, this loss is usually about __________.

A) 1.0"
B) 1.5"
C) 2.0"
D) 2.5"