Which Statement Best Describes People Who Work on Rotating Shift

Which statement best describes people who work on rotating shift schedules (e.g.,sometimes days,other times evenings or nights) compared to people who work the same shift all the time (e.g.,always days,evenings or nights)

A)  Rotating shift workers have more accidents and are less productive. 
B)  Rotating shift workers are more likely to have accidents but are more productive. 
C)  Rotating shift workers are more likely to have accidents but are equally productive. 
D)  Rotating shift workers have fewer accidents but are less productive.