A. cause a shortage of apartments B. worry those who rent apartments as homes C. increase the profits of landlords D. encourage landlords to invest in building apartment 参考答案:A 答案解析:[分析] 细节理解题。问题问的是规定最高租金可能会导致什么结果。文章第一段明确指出,landlords(房东)收取租户的租金有了最高限额,所以他们的利润受到影响,也可能导致他们投资其他行业,鉴于此,C