In the traditional advertising model, advertisers were charged using a approach Google transformed the traditional model to a model called where an advertiser pays only when somebody actually clicks on the ad and is delivered to their website.
A. cost per thousand occurrences; cost-per-clack
B. cost per thousand incidences; cost-per-snap
C. cost per thousand impressions; cost-per-click
D. cost per thousand recurrences; cost-per-lead
E. cost per thousand frequencies; cost-per-hit
Answer: C
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