Google Chose a New Model for Its Advertising,it Decided to

Google chose a new model for its advertising,it decided to

A) show advertisements that were the exact opposite of a consumer's profile to give the ads a higher awareness rate.
B) randomize the time periods between ads and banners rather than use a steady schedule in order to keep the ads more noticeable.
C) customize all advertisements to reflect customers' preferences for color, music, and fonts based on information obtained from cookies.
D) create a "quality score" to predict how effective an ad would be based on factors such as click-through rates, advertiser history, and keyword performance.
E) create an "ad-option" page for consumers to create their own consumer profile- blocking out products and services they don't want and selecting the products and services they do.