II. Read the passage and choose the best option for each question or statement. (1.0 pt) The difference between the nuclear family and the extended family is that a nuclear family refers to a single basic family unit of parents and their children, living together in a single house or other dwellings; whereas the extended family refers to their relatives such as grandparents, in-laws, aunts and uncles, etc. In many cultures like in historical Europe and Asia as well as in Middle Eastern, African, and South American Aboriginal cultures, the latter is typically the most common basic form of social organization. Historically, most people in the world have lived in extended family groupings rather than in nuclear families. This was even true in Europe and in the early United States, where multiple generations often lived together for economic reasons. During the 20th century, average income rose high enough that living apart as nuclear families became a possible option for the vast majority of the American population. In contrast, many indigenous societies and residents of developing countries continue to have multiple generations living in the same household. The rise of the nuclear family in the modern West does not necessarily mean that family arrangements have stabilized, either. The rapid growth in single-parent households, for instance, also represents a substantial change in the traditional nuclear family. More couples are also choosing not to have children at all. Câu 26:  What is the main idea of the first paragraph? A.   The dominance of nuclear families over extended ones B.   The dominance of extended families over nuclear ones C.   The distinction between nuclear families and extended ones D.   The changes of family types over times Câu 27:  The word “the latter” in paragraph 1 refers to           . A. family unit                                           B. relatives               C. the nuclear family                                                                 D. the extended family Câu 28: Historically, extended families were the most basic unit of social organization in all of the following places EXCEPT . A. The Middle East        B. Asia       C. North America D. Europe Câu 29: According to the passage, single-parent households    . A.   are the existing trend of family arrangement B.   are included in the term “extended family” C.  are included in the term “nuclear family”  D.  are on the decrease Câu 30:  The word “possible” in the last paragraph could be best replaced by __________. A. unlikely            B . likely                C. explainable       D. fashionable