Amy Is Three Years Old and Has 20/40 Vision

Multiple Choice

Amy is three years old and has 20/40 vision.What does this mean?

A) Amy's visual acuity is average for a three-year-old.
B) In order for Amy to see an object,she has to be 20 feet away from it,whereas most people can see the object from 40 feet away.
C) Amy is considered legally blind.
D) In order for Amy to see an object,she has to be 40 feet away from it,whereas most people can see the object from 20 feet away.