(1)In the late 1800s, the lines between social classes tended to blur in the large cities, much to the discomfort of the wealthy who struggled to separate themselves from the hoi polloi in various ways. (2)First of all, the rich moved to the suburbs and employed other methods of residential segregation to isolate themselves. (3)Another tactic to protect their exclusive status was to allow their children only to marry within their narrow group of acquaintances. (4)They also used sports and athletic clubs to set themselves apart. (5)“Gentlemen and ladies,” as they styled themselves, they wanted to compete only against opponents of similar dress, speech, education, and wealth. (6)One way to exclude the masses in sports was to engage in those that only the very rich could play. (7)Yachting and polo, for example, demanded nearly unlimited free time, expensive equipment, and a retinue of hired helpers. (8)Eventually, every major Eastern seaboard city had its exclusive yacht club. The main pattern of organization of the above selection is