Network television advertising is very expensive. The media planner looks both at the total cost of using a medium and at the .

cost per thousand persons reached.

Explanation:

Naturally, this is used in any form of planning as it is seen in the case of the required television outlet in calculating for the thorough cost effectiveness during this ordeal and also use it as aids in getting an approved or target budget in course of running the said media advertising. Even as it is stated above that it is expensive; it is seen that when the audience to reach out to 1000 or lesser, it it is less costlier which means in this case, it us to be a multiple of 1000.

answer; i believe the correct answer is (75 years);

answer; rapid growth in buyer demand and high buyer switching cost;