Table 7.4 Activity Predecessor Time(weeks) A 6 B 6 C A 4 D B 9 E C.D 11 F E 3 Using Table 7.4, what is the largest amount of slack that any activity in the project has? Select one: O A. five weeks O B. two weeks O C. zero weeks O D. four weeksTable 7.4 Activity Predecessor Time(weeks) A 6 B 6 C A 4 D B 9 E C.D 11 F E 3 Using Table 7.4, what is the slack for activity D? Select one: O A. zero weeks O B. one week O C. three weeks O D. two weeks