You have 100 segments in the USERS tablespace. You get an alert that the USERS tablespace is running low on space. You decide to shrink some segments. Which option would you use to determine which segments to shrink?（）

• A、Segment Advisor 
• B、SQL Tuning Advisor 
• C、SQL Access Advisor 
• D、Segment Resource Estimation 
• E、Automatic Database Diagnostic Monitor (ADDM)