There Are One Hundred Supervising Jobs and One Hundred Male

There are one hundred supervising jobs and one hundred male supervisors in a competitive job market. In addition, each supervisor supervises one line worker. There are one hundred line jobs and one hundred line workers. The supervisor of job one dislikes supervising female line workers by $1 a week. The supervisor of job two dislikes female line workers by $2 a week, and so forth, such that the supervisor of job hundred dislikes supervising female line workers by $100 a week. There are 60 female and 40 male line workers. Supervisors of male line workers are paid $400 a week and male line workers are paid $200 a week. Which of the following is NOT true in the short-run equilibrium?

A) The female line worker working for the supervisor in job 60 will get paid $140 a week.
B) The female line worker working for the supervisor in job 20 will get paid $140 a week.
C) The employer of the supervisor in job 80 must paid the supervisor $460.
D) The employers of male line workers could increase profits by hiring females instead.