You notice that the performance of the database has degraded because of frequent checkpoints. Which two actions resolve the issue（）

A. Disable automatic checkpoint tuning.
B. Check the size of the redo log file size and increase the size if it is small.
C. Set the FAST_START_MTTR_TARGET parameter as per the advice given by the MTTR Advisor.
Decrease the number of redo log members if there are more than one redo log members available in each redo log group.