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

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A . CPC and CPM bids only compete against bids of the same type

B . Ads using CPC bids are not allowed to compete on the Display Network

C . CPC bids are effectively converted to CPM bids

D . CPM bids are effectively converted to CPC bids

Correct Answer is:

C . CPC bids are effectively converted to CPM bids

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