If the Cost-Per-Thousand Impressions (CPM) Option Is Not Available for a Campaign

Multiple Choice

If the cost-per-thousand impressions (CPM) option is not available for a campaign, the most likely reason is that the campaign:

A) Has used CPM pricing before.
B) Is only opted into Google search and the Search Network.
C) Only opted into the Google Display Network.
D) Has never used CPM pricing before.