extending search campaigns to Audience Ads with Multi-Channel Management, and By creating audience ads campaigns from When using the Audience Network Planner how does it describe the audience size? Estimated overall figures: the estimated monthly audience (number of people, per month, in the audience you defined).

The selected answer option, The number of people, per month, in the audience you defined, is correct because the Audience Network Planner provides estimated overall figures based on the monthly audience size. This estimate reflects how many people, on average, would be in the defined audience each month, helping advertisers understand the potential reach of their campaigns over a 30-day period. This monthly estimate is important for planning purposes, as it gives a clearer picture of the scale of the audience that will be exposed to the ads, allowing advertisers to adjust their targeting and strategy based on their campaign goals. The other options, such as per week, per year, or per day, do not align with the typical measurement used in the Audience Network Planner.