Unnecessary REORGs of indexes may be avoided by which of the following?

A.
Use the SYSIBM.SYSINDEXSPACESTATS table.

B.
Use the REPORT utility to determine the degree of organization.

C.
Use the CHANGELIMIT keyword when creating an image copy of the index.

D.
Use the CHECK INDEX utility to find out if the index needs to be reorganized.

Explanation: