As People Age, the Lens of the Eye Loses Its

As people age, the lens of the eye loses its ability to accommodate, and it tends to remain flat instead of becoming fat and round. This suggests that as people age, they will ​

A) lose their ability to focus on objects in the distance.
B) be less likely to detect differences in light purity.
C) be more likely to detect differences in brightness and hue.
D) lose their ability to focus on objects that are close.