In the Duke Longitudinal Study

In the Duke Longitudinal Study,

A) the number of elders who were sexually active decreased substantially over the ten year period.
B) about half of the people who survived into their 80s and 90s reported having sexual interest.
C) actual sexual activity was about equal to sexual interest for most elders.
D) in about 35 percent of the sample, sexual activity increased over the 10 year period.