A job consists of three elements. Fifteen observations for each element were timed, and the resulting data are shown in the following table. A performance rating factor (RF) has also been assigned for each element, as shown in the table. The job has an allowance of 10% of normal time. Element # 1 # 2 #3 Performance Rating (%) 80 90 105 What is the standard time for the entire job? Average Element Time (in minutes) 4 6 3 O A. less than 12.0 minutes but greater than or equal to 10 minutes OB. greater than or equal to 12.0 minutes OC. less than 8.0 minutes O D. less than 10 minutes but greater than or equal to 8.0 minutes