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