- A) Allow you to only pay for those ads that are actually viewed
- B) Allow you to pay for ads when they are displayed in a viewable position
- C) Allow you to only pay for video ads that are viewed within an hour
- D) Allow you to pay for ads that are viewed and also converted
Explanation: With vCPM bidding, you bid for your ad based on how often it appears in a viewable position on the Google Display Network.
Read more here: https://support.google.com/adwords/answer/2630842?hl=en