An Analysis of the Incidence Rates of Unemployment and the Average

An analysis of the incidence rates of unemployment and the average duration of unemployment across demographic groups reveals that:

A) There is no apparent pattern.
B) The comparisons tend to change a lot over time.
C) Those groups with the highest incidence tend to exhibit the shortest durations and vice-versa.
D) Those groups with the highest incidence tend to exhibit the longest durations and vice-versa.
E) Data is not available in order to make these comparisons.