$9\mathrm{.}1\mathrm{.}3$: Add appropriate objects to a list of questions.

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Using the Question class in this section and its subclasses shown in the "Inheritance Hierarchy of Question Types" figure, rearrange the following lines to add appropriate objects to a list of questions. You can add them in any order. Then display all questions after the list has been sorted.

Not all lines are useful.