Which of the Following Does Not Encapsulate the Principles Behind

Which of the following does not encapsulate the principles behind the theory of equalising differences?

A) jobs where there is a high risk of failure will be paid more than those where there is a high chance of success
B) workers will need a higher wage to perform dangerous work
C) jobs that take longer to learn will offer a higher wage
D) seasonally employed agricultural workers will receive a lower wage because of their part-time employment