Which of the Following Is True About Google's Sponsored Links

Multiple Choice

Which of the following is true about Google's sponsored links?

A) The advertisers pay Google only when a search engine user clicks on the link and visits the sponsor's site.
B) As in the case of banner ads, advertisers pay just for being included in the search results.
C) The payment involved is not performance-based.
D) The amount that an advertiser owes for each click-through is set by Google.
E) The amount that an advertiser owes for each click-through is set by the IAB.