Which Worker Would Be Expected to Have the Most Disruption

Which worker would be expected to have the most disruption to their circadian rhythm? The worker who:

A) works 10-hour shifts 4 days per week.
B) works the first shift, from 7:00 A.M.-3:00 P.M.
C) works the second shift, from 3:00 P.M.-11:00 P.M.
D) works the third shift, from 11:00 P.M.-7:00 A.M.