Which of the Following Pairs of Characteristics or Events Is

Which of the following pairs of characteristics or events is most likely to occur together (that is, in the same age period) in a normative adult life?

A) maximum number of new roles acquired and high rates of loneliness
B) maximum number of new roles acquired and least gender role differentiation
C) maximum gender role differentiation and loss of visual acuity
D) initial loss of visual acuity and initial loss of crystallized intellectual skills