为什么在建立目标受众时，利用自己的数据会很有用？请选择所有合适选项。

Leveraging your own data (e.g., customer lists, website visitor data) in audience targeting is highly effective because it allows you to connect with individuals who already have a relationship with your business or have shown interest. You can reach existing customers for retention or upsell campaigns, interact with members who have previously engaged with your content or website, and identify and target qualified prospects who share characteristics with your best customers through lookalike audiences. This approach generally leads to higher conversion rates and more efficient ad spend compared to solely relying on broad demographic or interest-based targeting.