A systems administrator is restoring data from a backup.

The correct answer is A. 7za e data because the file identification output clearly states that the file named data is a 7-zip archive. On Linux systems, 7-Zip archives are commonly handled with the 7z or 7za utility. The e option means “extract,” which pulls the archived files out into the current directory. Since the file command has already confirmed the archive type, using the native extraction utility for that format is the correct troubleshooting and recovery step.

Option B is incorrect because tar is used for tape archive formats and related compression methods. The --lzip flag applies to lzip-compressed data, and --format=v7 refers to an older tar format. A 7-zip archive is not a tar archive, so this command would not be appropriate.

Option C is incorrect because unzip is intended for ZIP archives, not 7z archives. Even though both are archive/compression formats, they are not interchangeable. The syntax shown also does not match how one would properly extract a 7-zip file.

Option D is incorrect because zcat is used to display the contents of compressed files such as those using gzip-style compression streams. The -S 7 suffix does not convert zcat into a 7-zip extraction tool. A 7-zip archive requires the 7-Zip utility.

From a Linux troubleshooting perspective, the administrator first identifies the file type, then selects the matching utility for extraction. Because the archive is explicitly identified as 7-zip archive data, the proper command is 7za e data.