Perl Variables for Multiple-Choice and Multiple-Select Questions

The following reserved Perl variables are used to return information or set behaviors in questions that you create in WebAssign.

Variable	Description
`$ORDERED=n $ORDERED=list`	To display choices in the order listed in Answer, set $ORDERED to the positions (starting with 1) of one or more correct choices.
`$SET_EACH_POSITION`	To set the location of each choice individually, set `$SET_EACH_POSITION=1` in Answer. In Question, add an answer box `<_>` for each choice. Choices are still displayed in random order.
`$thisanswer`	Returns position (starting with 0) of student's response to multiple-choice question. For multiple- select, use `@$thisanswer`. Important Changing the value of this variable can cause your student's answer to be graded incorrectly.
`$PULLDOWN`	(Multiple-Choice) Set `$PULLDOWN=1` to display choices as a drop-down list.
`$Select_Option`	(Multiple-Choice) When choices are displayed as a drop-down list, set `$Select_Option` to the text that should be displayed by default. If not specified, `---Select---` is shown.
`$thiskey`	(Multiple-Choice) Returns position (starting with 0) of correct response to multiple-choice question.