A package delivery company or a cell phone company wouldn't go far if it could not deliver products smoothly and reliably. This means that is necessary for these industries.

Operational excellence

Explanation:

Operational excellence is the execution of a business strategy more consistently and reliably than the competition.

Smooth delivery of services and reliability are key factors that are used to measure operational excellence in businesses.  

The question is simply to test the understanding of the various concepts in business management .

Package delivery and phone companies are businesses that relate directly with the general public, and they have a lot of competition. To thrive, they need operational excellence which covers the effective and consistent satisfaction of their customers.