Why Do Your Parents or Grandparents Most Likely Need Glasses

Why do your parents or grandparents most likely need glasses to read?

A) The lens of the eye becomes rounder with age.
B) The lens of the eye stiffens with age, making it difficult to focus on nearby objects.
C) The optic nerve sends signals more slowly as people age.
D) The photoreceptors of the eye are no longer as responsive.
E) They have spent more time reading books at close range than have younger people.