The Amazon DSP automated budget optimization allocates budgets based on which of the following?

Amazon DSP's automated budget optimization is driven by the Key Performance Indicators (KPIs) selected for an order. The system dynamically allocates budget across line items within that order to maximize performance against the chosen KPIs, such as ROAS, CPA, or CPC. This ensures the budget is spent most effectively to achieve the advertiser's specific goals. "Type of creative selected" is incorrect because while creative performance influences budget allocation, it's a factor within the optimization process, not the primary basis for the optimization itself. "Duration of campaign" is incorrect as campaign duration defines the overall spending period but doesn't dictate how budget is optimized within that period. "Supply selected for a line item" is incorrect because supply sources are targeting parameters, not the fundamental drivers of budget optimization.