使用哪个营业地点数据源时，需要设置帐号并将其关联到 Google Ads？

The correct answer is "商家资料" (Business Profile). To use Business Profile locations in Google Ads for features like location extensions or store visits measurement, you must link your Google Business Profile account to your Google Ads account. This allows Google Ads to access and utilize your verified business locations. "Google 预收录的连锁店" (Google pre-qualified chain stores) refers to a pre-existing database of large retailers that Google already has information for, and typically doesn't require individual account setup and linking for basic use. "Google Ads" is the platform itself, not a data source that needs to be linked to itself. "Google Merchant Center" is used for product listings and shopping ads, not directly for physical store locations in the same way Business Profile is.