When querying the MON_GET_TABLESPACE table function, the values for many of the performance metrics
like POOL_DATA_P_READS and POOL_DATA_L_READS are showing 0, even though there is activity
occurring in the database. Which command must be executed to enable the table function to return actual
data?

A.
UPDATE DB CFG USING MON_OBJ_METRICS BASE

B.
UPDATE DB CFG USING MON_ACT_METRICS BASE

C.
UPDATE DBM CFG USING DFT_MON_BUFPOOL ON

D.
UPDATE MONITOR SWITCHES USING BUFFERPOOL ON