Abdul is reviewing pay data in preparation for negotiating with their largest union. He decides to calculate the compa-ratios for each salary band. Three of the bands have a compa-ratio of around 0.5, and three have a compa-ratio higher than 1. What can Abdul conclude based on this information?

a) Half the bands are underpaid and half the bands are overpaid b) Half the bands are below midpoint and half are at midpoint 

c) Half the bands could have positions with high turnover, and half the bands could have low turnover 

d) All of the bands are at midpoints, the compa-ratio differences are because of varying market rates