To set the history retention period for either window logging or job logging individually， which parameters of the SET_SCHEDULER_ATTRIBUTE procedure need to be used？（）

A. TRUE
B. FALSE
C. There is no default. It must be defined at creation time.
D. PENDING
E. NULL

A. SET_ATTRIBUTE_NULL
B. ALTER_JOB
C. ALTER_JOB_PARAMETERS
D. ALTER
E. SET_ATTRIBUTE

A. Fixed schedule
B. Inline schedule
C. Stored schedule
D. Hard-coded schedule
E. None of the above