【正确答案】 B

【答案解析】[解析] 画线词原形resident为名词，意为“居民；住户”。A项原形manager意为“经理；管理人”；例：All the managers agreed that this was a good idea. 所有的经理都认为这是个好主意。B项原形occupant意为“居住者；占用者”；例：A 12-year-old boy was the sole occupant of the big house. 一个十二岁的男孩是这所大房子的唯一居住者。C项原形landlord意为“房东；地主”；例：The landlord doesn't want to reduce the rent. 房东不打算降低房租。D项原形caretaker意为“夜间看管空房子的人”；例：You should inform the caretakers of the change to the alarm system. 你应该让守夜的人知道改变警报系统的事。故选B。