The correct answer is (c) cp file* directory_one
Easy explanation: For copying multiple files with a common starting name such as (file, file001, file.txt, fileone.jpg, file-archive.zip) we use (“*”). An asterisk (“*”) is a wildcard – a special character which expands to match other characters. For example, cp file* directory_one will copy all the files whose name will be starting with ‘file’ into ‘directory_one’ file.