What is the difference between an impromptu debate and an extemporaneous debate?
A. Impromptu debates require three debaters on each team, while extemporaneous debates require five debaters per team.
B. In an impromptu debate, participants have much less time to prepare for the debate than in an extemporaneous debate.
C. In an impromptu debate, participants can’t make rebuttals.
D. Impromptu debates only deal with controversial topics, while extemporaneous debates can be about any topic.