Which of the Following Is True About Pay Grades and Ranges

Which of the following is true about pay grades and ranges?

A) One approach for establishing pay grades and ranges is to have a relatively large number of grades with identical rates of pay for all jobs within each grade.
B) The minimum of a pay grade's range places a ceiling on the rate that can be paid.
C) The maximum of a pay grade's range places a floor on the rate that can be paid to any employee whose job is classified in that grade.
D) In establishing pay grades and ranges,one method is to have a small number of grades with a relatively narrow dollar range for each grade.