To Reduce Waiting Times by Actively Managing System Constraints, Managers

Multiple Choice

To reduce waiting times by actively managing system constraints, managers could consider:
(I) using temporary workers.
(II) shifting demand from high-demand periods to low-demand periods.
(III) offering more service variety.
(IV) discovering bottlenecks.

A) I and III only
B) I, II, and IV only
C) III only
D) II and IV only
E) IV only