It is in the step of the process of developing an advertising campaign that the metrics are articulated against which advertising success or failure of the campaign is measured. Multiple Choice convey the message identify the target market create the advertisements set the advertising objectives

set the advertising objectives

Explanation:

Advertising metrics are like a checklist of which expresses the objectives upon which a marketing campaign tends to achieve. It is at the point of setting the advertising objectives that these marketing metrics, which would be used in tracking the progress of the marketing campaign, are clearly stated. Example of marketing metrics could be brand awareness, return on marketing investment, customer acquisition cost, etc.

answer; by looking at total product,marginal product,and changes in both after changes in inputs