Betsy, Who Is 8 Years Old, Has Gained a Lot

Betsy, who is 8 years old, has gained a lot of weight over the past couple of years and her parents are concerned.At her annual physical exam, the doctor indicated that she had a BMI of 23.This means that Betsy __________.

A) is obese
B) is overweight
C) is of normal weight
D) is actually underweight for her age