Given the following listing, which of the following statements is true?

user@machinename:$/$$ type ll

ll is aliased to $\text{'}$ls $-$alF'

user@machinename:$/$$

Group of answer choices

The code for the ll command is supported internally in the shell

The executible for the ll command is stored in $/$usr$/$bin

The ll command is a script incorporated into the environment

The ll command is user defined and built from other commands