Why are millions of dollars a year spent on advertising
a. because otherwise tv shows would need to be longer, and actors would need to be paid more
b. because attitude change leads people to be more willing to spend money frivolously
c. because advertising is effective when it is done subliminally
d. because it is assumed that attitude change leads to behavioral change

option D

Explanation:

The correct answer is option D

Advertising is one of the modes of the best way to sell the product.

Advertisement creates a need among the Society. Advertisements can also help to know the society like they will sell those things which are required.

Advertising can change people's ideas, opinions to sell their products.

We can clearly say that Company spending on advertisements can change the thinking of society, it can also increase the demand among society.

So,  millions of dollars a year spent on advertising can cause a behavioral change in society.