Which of the following tools can make recommendations for indexes and/or MQTs to improve the performance of DB2 applications?（）

A.DB2 for z/OS
B.DB2 Run-Time Client for z/OS
C.DB2 Connect Enterprise Edition for z/OS
D.z/OS Application Connectivity to DB2 for z/OS and OS/390

A.View
B.Catalog Table
C.Stored Procedure
D.Global Temporary Table

A.A unique index
B.A composite index
C.A check constraint
D.A generated column