The enhanced cost-per-click (ECPC) bidding strategy can be described in which of the following ways?
- ECPC first looks at ad auctions, before raising a max cost-per-click (CPC) bid.
- ECPC first looks at ad auctions, before lowering a max cost-per-click (CPC) bid.
- ECPC first looks at a listed target return on investment (ROI), before lowering a max cost-per-click (CPC) bid.
- ECPC first looks at a listed target return on investment (ROI), before raising a max cost-per-click (CPC) bid.