Which option best revises this sentence to use the correct in-text citation, according to mla standards? transportation planners define abbreviated work schedules as those that are "regularly less than 40 hours per week" (47). a. transportation planners define abbreviated work schedules as those that are "regularly less than 40 hours per week" (47 reidel). b. transportation planners define abbreviated work schedules as those that are "regularly less than 40 hours per week" (reidel, 2014, 47) c. transportation planners (reidel 47) define abbreviated work schedules as those that are "regularly less than 40 hours per week." d. transportation planners define abbreviated work schedules as those that are "regularly less than 40 hours per week" (reidel 47).