フリー問題

問題文

A conference team sends one list email to three recipient lists. About 400 prospects appear on two of those lists, and one address is shared by two prospect records. The team asks whether a suppression list is needed to stop duplicate delivery. What is the answer?

選択肢

1. A suppression list is needed, because the send removes the duplicates across the recipient lists but not across the repeated addresses.
2. No suppression list is needed, because the send removes the duplicates across the recipient lists and across the repeated addresses.
3. No suppression list is needed, because the send merges the duplicate records into one prospect before the delivery begins.
4. A suppression list is needed, because the send keeps the duplicates across the recipient lists and across the repeated addresses.