Final answer:
The correct answer to the question is 'Marketing return on investment,' which measures the effectiveness of a company's marketing campaign by comparing the profit generated to the cost incurred.
Step-by-step explanation:
The net return from a marketing investment divided by the costs of the marketing investment is known as Marketing return on investment (ROI).
This metric helps companies to determine the effectiveness of their marketing campaigns by comparing the incremental financial gain attributable to a particular marketing initiative with the cost incurred to execute it.
To calculate marketing ROI, you subtract the marketing investment from the sales growth attributable to that marketing, then divide this number by the marketing investment and multiply by 100 to get a percentage.
So the correct answer is: a. Marketing return on investment