Answer: b. Reach
The number of people likely to receive a marketing message is referred to as Reach.
Step-by-step explanation:
In any marketing strategy of product or service it is expected that maximum people will know about that product and service. This group of people who know about the product is the reach of the company.
Increasing reach of the product is the main goal for the marketing and advertising procedures. Reach of radio is measured by the percentage of people using radio in their houses.