A poll in quiz mode, which has exactly one correct answer option and can be answered only once. Subtype of PollType.
0-based identifier of the correct answer option; -1 for a yet unanswered poll.
Text that is shown when the user chooses an incorrect answer or taps on the lamp icon; 0-200 characters with at most 2 line feeds; empty for a yet unanswered poll.
A poll in quiz mode, which has exactly one correct answer option and can be answered only once. Subtype of PollType.