The commands available from a menu may change as a result of a user's actions.

true
false

True. Say we have 3 options and the three options are: create a text file, move the text file and rename the text file. But the user wants to delete the file. But he can't because there is no option for deletion. So his best option is to move the text file to another folder. To at least get it out of the way.

Answer (a) with a mirror like surface;