When setting up a campaign, you can use Display Planner to get an idea of the budget and bids you should set based on your:

128) When setting up a campaign, you can use Display Planner to get an idea of the budget and bids you should set based on your:

   A)  traffic estimates for placement ideas
   B)  historical conversion rate estimates for your keyword and placement ideas
   C)  historical cost-per-click (CPC) estimates for your keyword and placement ideas

   D)  traffic estimates for your keyword ideas