Digital Marketing — Hard What is audience extension in digital advertising and how does it work? A Automatically extending campaign duration when a budget has not been fully spent B A technique where publishers or data partners allow advertisers to reach their known, validated audiences (subscribers, registered users) beyond the publisher's own properties across the open web — enabling advertisers to benefit from publishers' first-party data quality and reach while users are elsewhere online C Extending audience targeting by adding related interest categories to an existing campaign D Expanding a social media advertising audience by gradually increasing the age range targeted Show explanation
