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