Answer to Question 1
On the theory that the search terms a person enters reveals his or her current interests, Google developed the Adwords program, which serves small, text-only ads related to the search in a list of sponsored links. When a person types in shiba inu for example, he will see sponsored links offering puppies for sale. Whether the ad actually appears to someone who submits a keyword the organization has chosen for its ad depends partly on how much the company is willing to spend each day. Unlike buyers of most banner-type ads, these advertisers pay only when someone actually clicks on the ad, not each time it appears.
Answer to Question 2
B