单选题
What is the author' s opinion on the supposition that the homeless are primarily the former residents of mental hospitals?
【正确答案】
C
【答案解析】[试题分析] 本题为作者观点题。 [详细解答] 在最后一段中,作者承认有些流浪者是精神病人或是从精神病院出来的人and a number of these people left mental hospitals during the 1970s.但是作者认为这些人只占了一小部分,因此说作者是部分肯定的。