Britney and david work for the same retail clothing company. britney started working with the company as a manager of the children’s department. she has a business degree, five years of experience in retail sales, and has excellent customer relationship skills. she is paid $60,000 per year plus benefits. david also has a college degree but his degree is in communications. he has six years of experience as a retail sales manager in the men’s department of a clothing company and spent a year on the staff of a famous clothing designer where he gained unique insights into how clothing is made, how fabrics are selected and the different properties of different fabrics. he is paid $80,000 per year plus benefits. britney and david were discussing their compensation during lunch one day and britney was quite upset that david was paid so much more than she. what is the issue that has caused britney to be upset?