Martha Is Afraid That She Will Develop Some Sort of Mental

Martha is afraid that she will develop some sort of mental disorder when she gets very old.How realistic is her fear?

A) realistic,because the majority of older adults develop a mental disability
B) unrealistic,because mental disability is the exception for older adults
C) realistic,because a moderate number of older adults will develop some type of mental disability
D) unrealistic,because mental disabilities in older adults tend to be only minor problems