Which technique allows advertisers to adjust strategies based on user interactions?

Real-time bidding is the correct choice because it allows advertisers to make instantaneous decisions based on user behavior and interactions with ads in the digital space. This technique involves the automated buying and selling of ad impressions in real time, where advertisers can adjust their bidding strategies dynamically based on data signals, such as user engagement, demographic information, device type, and past behaviors.

In this context, when an impression is available, advertisers can evaluate the potential effectiveness and relevance of their ad to that specific user and determine how much they are willing to bid for the opportunity to show their ad. This agility in responding to user interactions helps optimize campaign performance, ensuring that ads are more relevant and timely.

The other choices, while related to advertising, do not provide the same level of interaction-based adaptability. Fixed pricing offers a stable cost structure but lacks the flexibility to adjust based on real-time user interactions. Static reporting provides insights based on historical data but does not allow for immediate adjustments to strategies. Manual adjustments require human intervention and do not leverage real-time data efficiently, making them less responsive compared to the automated nature of real-time bidding.