All lines in an order are opted into budget optimization, but the most efficient line has the lowest allocated budget. What is an optimization you could make to help allocate more budget to that top-performing line?

The correct answer is Increase the base bid on the top-performing line because increasing the base bid on the top-performing line would help allocate more budget to that line. In a budget-optimized campaign, the system typically distributes the budget based on the performance of the lines. By increasing the base bid for the top-performing line, you signal to the optimization algorithm that this line should receive more attention and a larger share of the budget, as higher bids often lead to more competitive ad placements and greater exposure. This strategy helps ensure that the most efficient line receives the resources needed to continue performing well. Decreasing the base bid or adjusting frequency settings would not directly address the budget allocation issue, and removing audiences might limit the potential reach of the campaign.