Consider the following actions of a college trying to manage the costs of its library.

Required
Match each of the process improvements listed with how they deliver cost reductions.
Process Improvement
1. Library books may now be renewed online by the reader rather than at the library with the assistance of a library staff member.
2. Library hours have been reduced.
3. Student workers have been trained to become more efficient at performing cataloging tasks.
Deliver Cost Reduction
a. By reducing the frequency of activity.
b. Improving the efficiency of the activity.
c. By both a and b.