Which of the following are examples of customer list custom audiences? (Select all that apply)

Customer list custom audiences are created by uploading a list of customer identifiers, such as email addresses or phone numbers, to a platform. Churned customers, email list subscribers, and loyalty program subscribers all represent groups of individuals whose contact information an advertiser would likely possess, making them suitable for creating such an audience. "People who follow r/personalfinance" is an interest-based audience defined by user behavior on Reddit, not a customer list uploaded by an advertiser.