I'm assuming a multiple-choice exam, and invalid answers don't count as 'wrong' for that purpose?
Otherwise I can easily miss the entire exam with "Tau is exactly six." or "The battle of Thermopylae" repeated for every answer. Even if the valid answers are [A;B;C;D].
"The battle of Thermopylae" repeated for every answer.
Unless it really was the battle of Thermopylae. Not having studied, you wont know.
Here's the new thread for posting quotes, with the usual rules: