Which command is used to delete files from the user system that have not been accessed or modified in over a year, prompting the user for confirmation before removal?

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find -mtime +365 | rmgrep /usr/* -mtime +365 | -ok rmfind -name -mtime +365 / -ok rmfind /user/* \(-mtime +365 -a -atime +365 \) -OK rm {} \;None of the above

Explanation

Option A uses the 'find' command with '-mtime +365' to locate files modified more than 365 days ago, piping the results to 'rm' for deletion. However, this command lacks a confirmation prompt. Other options either misuse commands or have syntax errors.