フリー問題

問題文

A retailer notices that a subscriber who unsubscribed last year is still present in the account with a recorded address. Which record explains why that person remains visible while receiving nothing?

選択肢

1. The publication list of the newsletter, which keeps every subscriber the account has known together with the current status of each one.
2. The sendable data extension, which keeps every subscriber the account has known together with the current status of each one.
3. The suppression list, which keeps every subscriber the account has known together with the current status of each one.
4. The all subscribers list, which keeps every subscriber the account has known together with the current status of each one.