What command is used to assign executable permission to all of the files named “report”? A. chmod ugo + x report B. chmod u + x report C. chmod ugo + rw report D. chmod ugo + r report E. None of the above

The correct answer is A. chmod ugo + x report.

The chmod command is used to change the permissions of a file. The u, g, and o refer to the user, group, and other permissions, respectively. The + sign means to add the permission, and the x sign means to make the file executable.

So, the command chmod ugo + x report will add the executable permission to the file report for the user, group, and other users.

Option B, chmod u + x report, will add the executable permission to the file report for the user only.

Option C, chmod ugo + rw report, will add the read and write permissions to the file report for the user, group, and other users.

Option D, chmod ugo + r report, will add the read permission to the file report for the user, group, and other users.

Option E is incorrect because it does not include the x sign, which is required to make the file executable.