Brian Wants to Demonstrate an Example of Hacking Google's Adsense

Brian wants to demonstrate an example of hacking Google's adsense system. He decides to setup a "splog". What is Brian trying to illustrate?

A) Articles full of keywords but with dubious content value
B) Splurging on a burst of advertising on high cost, high impact traffic sites
C) Posting comments on trendy, spur of the moment type blog articles that have timely and up to the minute reporting
D) A network of connected sites that promote high click through actions. Example" "Click here" results in a sentence or two of promotion copy only to require yet another click to hopefully one day view some content.