Digital Marketing — Hard What is the concept of frequency capping and why is it important for both brand safety and campaign efficiency? A Limiting the maximum bid a campaign can make per impression in real-time auctions B Limiting the total number of creative assets in a campaign to avoid serving low-quality variations C Setting a limit on how many times the same ad is shown to the same person within a given time period — important because excessive frequency causes ad fatigue (declining CTR, negative brand sentiment), wastes budget on impressions with diminishing returns to the same users when that budget could reach new audiences D Capping the maximum number of keywords in a campaign to maintain focus and relevance Show explanation