You need to improve the performance of the tempdb database on SQL1.Which two actions should you perform？（）

• A、Move tempdb onto a faster disk volume.
• B、Increase the initial size of tempdb to 1.5 GB
• C、Increase the size of the data files in the Tracking database.
• D、Decrease the file growth increment for tempdb to 25 MB
• E、Use more local temporary tables and fewer global temporary tables in the Tracking database.