您计划投放行动号召视频广告系列，并且希望从漏斗下端受众群体入手，后续再扩大覆盖范围。 以下哪种组合符合这种方法？

The correct approach is to start with your data segments (remarketing audiences) and then expand to Customer Match segments. Your data segments represent users who have already interacted with your business (e.g., website visitors, app users), placing them at the bottom of the funnel and most likely to convert. Once you've maximized reach within this highly engaged group, expanding to Customer Match allows you to target existing customers or leads based on their email addresses, further refining your lower-funnel targeting before moving to broader audiences. Starting with Customer Match and then expanding to remarketing is less efficient as remarketing audiences are generally more engaged. Starting or expanding with affinity audiences targets users higher up the funnel and is not ideal for a lower-funnel-first strategy.