A Patient Who Presents for an Eye Examination Is Diagnosed $20 / 40$

A patient who presents for an eye examination is diagnosed as having a visual acuity of $20 / 40$ . The patient asks the nurse what these numbers specifically mean. What is a correct response by the nurse?

A) A person whose vision is $20 / 40$ can see an object from 40 feet away that a person with 20/20 vision can see from 20 feet away.
B) A person whose vision is $20 / 40$ can see an object from 20 feet away that a person with 20/20 vision can see from 40 feet away.
C) A person whose vision is $20 / 40$ can see an object from 40 inches away that a person with 20/20 vision can see from 20 inches away.
D) A person whose vision is $20 / 40$ can see an object from 20 inches away that a person with 20/20 vision can see from 40 inches away.