Draw an activity chart for a machine operator with the following operation. The relevant times are as follows: O A. Plot all required processes and their relevant times on the chart. Choose the correct graph below. Time HERE F1. -3- -4- -6 Operator Time Machine Time Prepare Mill Idle Load Mill Idle Unload Mill F1- 2 5 -6 Mill Operating (Cutting Material) Idle 1 2 -5- Prepare mill for loading (cleaning, oiling, and so on) Load mill 6 Mill operating (cutting material) Unload mill Q Q OB. 0.50 min 1.75 min 2.25 min 0.75 min Time 1 2- 3 -5 6 Operator Prepare Mill Load Mill Idle Unload Mill Time 1 2 -3- -5 2 -6- Machine Time Idle Mill Operating (Cutting Material) Idle - 1 2 5 -6- Q Q O C. Time Operator Time Machine Time Prepare Mill 1 Load Mill 1 Idle 2 18 3 Mill 3 Idle Operating (Cutting 4 Material) 4 Unload Mill Idle 5 6 1 2 3 4 5 6 LO N 5 CO O D. Time 1 2 3 4 5 6 Operator Prepare Mill Load Mill Idle Unload Mill Time 1 2 3 Mill Operating (Cutting 4 Material) LO 5 Machine Time 6 Idle Idle I I - 2 3 4 5 6 N