You are using replication and the binary log files on your master server consume a lot of disk space. Which two steps should you perform to safely remove some of the older binary log files?（）

A. Use the command PURGE BINARY LOGS and specify a binary log file name or a date and time to remove unused files
B. Execute the PURGE BINARY LOGE NOT USED command
C. Remove all of the binary log files that have a modification date earlier than today
D. Edit the .index file to remove the files you want to delete
Ensure that none of the attached slaves are using any of the binary logs you want to delete