John and Lisa Hold the Same Position at Flyberry Electronics

John and Lisa hold the same position at Flyberry Electronics.However,John earns more than Lisa.In the context of pay structure,which of the following justifies the organization's decision to pay John more than Lisa?

A) John works the night shift,and night hours are less desirable for most workers.
B) John is a U.S.citizen;therefore his pay should be higher than that of non-Americans.
C) Lisa is pregnant;therefore her productivity is assumed to be lower.
D) John is physically disabled;therefore he should be paid more than Lisa.
E) Lisa lives in a location where living expenses are higher.