While designing your database, you have created the EMPLOYEES table as an index-organized (IOT).
You want to create a bitmap index on the JOD_ID column to make queries faster.
Which task must have been completed so that you are able to create the bitmap index?
A.
A primary key must have been created.
B.
A mapping table must have been created.
C.
An overflow tablespace must have been specified.
D.
The PCTTHRESHOLD option must have been specified.