Which symbol is used to separate more than one command in the same command line? A. $ B. # C. : D. ; E. None of the above

The correct answer is: D. ;

The semicolon (;) is used to separate more than one command in the same command line. For example, the following command will print “Hello world” and then “Goodbye”:

echo "Hello world"; echo "Goodbye"

The other options are incorrect. The dollar sign ($) is the prompt character, the hash mark (#) is used to start a comment, and the colon (:) is used to separate options from arguments.