If you're making a MC quiz you could just type in "True" and "False" as answer choices in the first question and then copy the choices to all questions, or if you're making a click quiz just put "True" and "False" into the second column
Alternatively, using the Click quiz and switching the mode from "One to One" to "Many to One" and then putting True and False on the answer column, then congrats! Use the hint column as your question.