How do cost per click (CPC) ads compete with cost per thousand impressions (CPM) ads on the Google Display Network?

How do cost per click (CPC) ads compete with cost per thousand impressions (CPM) ads on the Google Display Network?

  • CPC and CPM bids only complete against bids of the same type
  • Ads using CPC bids are not allowed to compete on the Display network
  • CPM bids are effectively converted to CPC bids
  • CPC bids are effectively converted to CPM bids

Answer : Ads using CPC bids are not allowed to compete on the Display network