Fill in the blank with a suitable preposition.
Katherine is a member ________ the chess club.
The preposition ‘of’ is used to denote belonging or relation. In the given sentence Katherine belongs to the chess club and is a part of it. Therefore option C is correct. Whereas ‘off’ means to be away from something, which is inappropriate here. Thus option D is incorrect. On the other hand, ‘with’ is used to denote a tool or company while ‘through’ denotes a means or agent. Since ‘the chess club’ is neither of these, options A and B are incorrect.