When Mason Automotive Supply asked employees from a number of departments, such as marketing, finance, sales, human resources and production, to come together to accomplish a particular task, it was an example of a:

Command group.

Explanation:

It is correct to state that the question above portrays an example of a command group, which is understood as a formal group where employees must report to their superior according to the organizational hierarchy.

In the command group, employees will carry out the tasks determined by the manager, who will be responsible for the coordination and control of his subordinates, so that the organizational objectives and goals are properly achieved.