A search engine is selling 2 advertising slots/positions. Three advertisers are competing for these slots. Slot 1 generates 100 clicks per day. Slot 2 generates 50 clicks per day. The value of each click is $10 for advertiser A, $7 for advertiser B, and $8 for advertiser C. Assume that the search engine uses VCG. Mark all the correct answers.

A. Advertiser A gets slot 1 and pays $8 per click B. Advertiser B gets slot 2 and pays $8 per click C. Advertiser B gets slot 2 and pays $7 per click D. Advertiser C gets slot 2 and pays $7 per click