Which audience solution allows you to transfer your existing audiences to the Amazon DSP from multiple sources?

The correct answer is Advertiser audiences. Advertiser audiences allow you to transfer your existing audiences to Amazon DSP from multiple sources, including first-party data, hashed customer lists, and other audience segments you have created or collected through various marketing platforms. This flexibility makes it easier for advertisers to leverage their own data to target relevant audiences effectively within the Amazon DSP environment, enhancing the precision of their campaigns. By integrating external audience data with Amazon's DSP, advertisers can create more personalized and targeted ads, ultimately improving campaign performance and maximizing reach across Amazon's vast advertising network.