Which of the Following Is True About Transitional Matrices

Which of the following is true about transitional matrices?

A) A transitional matrix can only be read from top to bottom.
B) Transitional matrices provide a comparison of the proportion of workers in protected subgroups with the proportion that each subgroup represents in the relevant labor market.
C) Transitional matrices provide an objective measure of the effectiveness of an organization's human resource recruitment policy.
D) Transitional matrices are extremely useful for charting historical trends in a company's supply of labor.
E) Transitional matrices show the increase in productivity of employees over a period of time.