The correct answer is B: adjourned to. To "adjourn" means to suspend a meeting, session, or in this case, a debate, to a future time or place. When followed by "to the following week," it explicitly states that the debate was postponed and will resume or take place at that later date. This is a formal and precise term often used for official proceedings like debates, court sessions, or legislative meetings, indicating a temporary halt with a scheduled resumption.
A: cancelled for is incorrect. "Cancelled for" would imply that the debate was called off entirely for the following week and would not happen at all. This contradicts the idea that it was merely moved to a later date.
C: put off is incorrect because while "put off" is a common informal way to say postpone, "adjourned to" is more appropriate for a formal event like a debate, especially when a specific new time is given. "Put off" on its own sounds less formal and can sometimes imply an indefinite postponement, whereas "adjourned to" clearly indicates a new scheduled time.
D: called out is incorrect. To "call out" means to challenge someone, criticize them publicly, or summon someone. None of these meanings fit the context of rescheduling a debate. It has no relevance to the postponement of an event.