Answer: a. to inform readers about different types of ads
Explanation:
The Passage is meant to convey to the reader that there are multiple types of Ads around as well as how those ads work.
It speaks of Association Ads that aim to get a person to buy a product so that they may look or feel the same as people who have the product.
Then there are Story Ads as well that tell a story in the Ad that describe what life would be with the product in your life.
Also included are Endorsement products where people who have presumably used the product saw a great change and now are recommending that everybody uses it.
There are Effectiveness Ads as well that show that a person should buy a product because of what it is able to do and how effective it is at doing so.
After reading this passage, a reader will be more knowledgeable of different types of Ads if they weren't already.
That would be B) when stopping to secure it
