Why do stored procedures and functions improve performance? (Chose two)

• They reduce network round trips.
• They postpone PL SQL parsing until run tune.
• They allow the application to perform high speed processing locally.
• Thev reduce the number of calls to the database and decrease network traffic by bundling commands.
• Thev reduce the number of calls to the database and decrease network traffic by using the local PL SQL engine.

B & D