For better results, move your budget from low-performing line items to those delivering stronger campaign performance.

• Budget should not be changed
• Increase budget for this low-performance line item
• Shift budget to higher-performance line items

The correct answer is: Shift budget to higher-performance line items

Explanation: If a line item in your campaign is underperforming while still consuming a high budget due to high delivery, you should shift your budget towards higher-performing line items. This allows you to focus your advertising spend on the components driving the best results, improving the overall effectiveness and efficiency of your campaign. Optimizing budget allocation based on performance ensures that your investment generates maximum return.