Which of the Following Is the Critical Time Period for the Purposes

Which of the following is the critical time period for the purposes of calculating overtime requirements under the FLSA?

A) Number of days per week that an employee works in excess of 8 hours
B) Number of hours worked over the maximum permitted during a 7-day work week
C) Number of hours worked over a 5-day period in excess of 40
D) Number of days worked in excess of 5 during any given work week