A. Use a separate table for each date.  Delete eachtable when it is one week old.
B. Use a separate table for each week.  Delete each table when it is one week old.
C. Use a single table， partitioned by date.  Use Entity Group Transactions to delete data when it is one week old.
D. Use a single table， partitioned by week.  Use Entity Group Transactions to delete data when it is one week old.

A. Use Entity Group Transactions.
B. Use multiple partitions to store data.
C. Use a transaction scope to groupall storage operations.
D. Use Microsoft Distributed Transaction Coordinator （MSDTC）.