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