Karen and ethan execute the same roles and responsibilities at their organization. however, ethan earns more than karen. under the laws governing equal employment opportunity, which statement will justify the organization's decision to pay ethan more than karen?

a) ethan is white, and karen is black.

b) ethan has more experience than karen.

c) karen has a hearing impairment.

d) men have more stamina, so they can work longer hours.

e) karen is an immigrant.