单选题 In the sentence "it's relatively inexpensive." (Para. 2), "it" most probably refers ______.

【正确答案】 A
【答案解析】此题要求猜测在句子“it's relatively inexpensive.”中的“it”指什么,应该是A,即旅游本身。其依据在第二段“The Kombi is transport and accommodation all in one,cutting down significantly on costs.”。由此可见因为Kombi可以集交通和住宿于一身,费用就可以大大得以降低。