Multiple choice technology programming languages

Which clearcase command is used to check in the files

  1. ct ci <filename>

  2. ct co <filename>

  3. ct mk <filename>

  4. ct mkelem <filename>

Reveal answer Fill a bubble to check yourself
A Correct answer
Explanation

In ClearCase, 'ct ci ' (check in) saves changes to the repository. 'ct co' is check-out (editing), 'ct mk' is not a complete command, and 'ct mkelem' creates new elements, not for checking in existing files.