Which of the Following Is Not a Reason for Compensating

Which of the following is not a reason for compensating wage differentials?

A) To compensate for the risk involved in certain jobs
B) The supply of laborers usually outnumbers its demand in these jobs
C) Such professions involve a high probability of life loss
D) To attract more laborers in risky professions
E) The working condition of some jobs are unpleasant