What Is the Major Conclusion from Studies on the Retention

Multiple Choice

What is the major conclusion from studies on the retention of material from college courses across very long periods of time?

A) Retention is excellent for the first few years, but it then gradually declines.
B) Retention declines in an almost linear way across the life span.
C) Retention is excellent for the first few years, but by middle age there is a precipitous drop-off.
D) Retention declines rapidly for the first two or three years, after which there is not much additional loss.