Fill in the blank with a suitable preposition.
The residents _______ the apartment decided to elect a new president.
The preposition ‘of’ is used to denote belonging and connection. In the given sentence the residents belong to the apartment, therefore, option D is correct. On the other hand prepositions ‘with’, ‘to’ and ‘through’ are unsuitable. ‘With’ denotes a tool or company, ‘to’ denotes a movement towards something while ‘through’ denotes a means or a path that needs to be crossed. None of these are apt in the given context because the sentence attempts to indicate the connection between the 'residents' and 'the apartment'. 'The apartment' is not any of the above three - a tool, movement or a path. Therefore, options A, B, and C are incorrect.