Part 1. [ Use Video-1 under Scheduling heading. ] Question 1. Consider a queuing system with a single queue and two servers in series. How many statements are correct? 0 1 2 3 4 Statement A. Johnson's rule is a sequencing rule that generates a schedule to maximize the total processing time. Statement B. Johnson's rule concept is to schedule jobs with smaller times on first server early in the schedule. Statement C. A Gantt chart is a time plot of a schedule. Statement D. Flow of the last job in a schedule is the time of completion of the project. Queue time of the first job in a schedule is always zero