单选题：根据下面材料，回答题：Though it is mere 1 to 3 percent of the populatio

根据下面材料，回答题：
Though it is mere 1 to 3 percent of the population, the upper class possesses at least 25 percent of the nation's wealth. This class has two segments: upper-upper and lower-upper. Basically, the up-per-upper class is the "old rich"--families that have been wealthy for several generations--an aristocracy of birth and wealth. Their names are in the Social Register, a listing of acceptable members of high society. A few are known across the nation, such as the Rockefellers, Roosevelts, and Vander-bilts. Most are not visible to the general public. They live in grand seclusion (深居简出), drawing their income from the investment of their inherited wealth. In contrast, the lower-upper class is the" new rich". Although they may be wealthier than some of the old rich ; the new rich have hustled ( 急,于做) to make their money like everybody else beneath their class. Thus their prestige is generally
lower than that of the old rich, who have not found it necessary to lift a finger to make their money, and who tend to look down upon the new rich.
However its wealth is acquired, the upper class is very, very rich. They have enough money and leisure time to cultivate an interest in the arts and to collect rate books, painting, and sculpture. They generally live in exclusive areas, belong to exclusive social clubs, communicate with each other, and marry their own kind--all of which keeps them so distant from the masses that they have been called
the out-of-sight class. More than any other class, they tend to be conscious of being members of aclass. They also command an enormous amount of power and influence here and abroad, as they hold many top government positions, run the Council on Foreign Relations, and control multinational corporations. The actions affect the lives of millions.
All the following statements are true EXCEPT that__________. A．the upper-upper class is of aristocratic origin
B．the "old rich" enjoy higher prestige than the "new rich"
C．the "old rich" isolate themselves and lead a lonely life
D．the upper class owns at least a quarter of the country's wealth