__________, the committee is of the opinion that all academic matters will be discussed in the Executive Body Meeting.

'Hence' is a discourse marker meaning 'therefore' or 'as a consequence' — used to introduce a conclusion or decision based on prior considerations. It appropriately introduces the committee's resulting opinion. 'But' shows contrast, 'Later' refers to time, and 'Although' introduces concession — none fit as well as 'Hence' for stating a conclusion or decision.