Under multiprogramming, turnaround time for short jobs is usually ________ and that for long jobs is slightly ___________

A. Lengthened; shortened
B. Shortened; lengthened
C. Shortened; shortened
D. Shortened; unchanged

Which of the following statements are true? (GATE 2010) I. Shortest remaining time first scheduling may cause starvation II. Preemptive scheduling may cause starvation III. Round robin is better than FCFS in terms of response time

A. I only
B. I and iii only
C. Ii and iii only
D. I, ii and iii