Which type of rules is used to manage ad spending and requires approval before publication?

The correct choice refers to Promotion Rules, which are specifically designed to manage the allocation of ad spending and ensure that campaigns adhere to budgetary constraints. These rules typically require a structured approval process before any promotional material is published, ensuring that all financial considerations and compliance metrics are addressed before the campaign goes live. This is critical for maintaining control over marketing budgets and strategic alignment with overall business goals.

The other options do not entail the same focus on managing ad spending with pre-approval requirements. Approval Rules would be related to general content approval processes rather than specific financial expenditures. Content Rules focus more on the quality or appropriateness of the content being published, without a specific emphasis on budget management. Engagement Rules typically relate to how audiences interact with content and don’t deal directly with the financial aspects or approvals related to spending on ads.