Emma works as a receptionist at Willoware Inc. As a part of her job, she is responsible not only for attending calls but also for welcoming clients and customers, keeping a record of the visitors, and mediating between visitors and managers. In the context of job design, Willoware Inc. is most likely using .

Job enlargement

Explanation:

Job enlargement, as the name implies, consists in widening the scope of a job, by adding more related tasks to it.

In this case, Emma's job is not only answering a phone, which is what typically a receptionist does, but also keeping records, welcoming people, and even mediating between visitors and managers, this last task likely requiring a great degree of responsability and social skills.

As a result, the scope of her job is now wider, and she has more tasks and responsabilities to meet.

oxidation-reduction

Explanation: