For an increasing number of students at American universities , Old is suddenly in . The reason in clear : the aging of prefix = st1 /Americameans jobs . Besides the aging of the body--boom   population , a longer life means that the nation's elderly population is certain to grow greatly over the next 50 years . By 2050, 25 percent of all Americans will be older than 65 , up from 14 percent in 1995. The change causes some questions for government and society , of course . But it also creates jobs in medicine and health fields , and in law and business as well. "Besides the doctors , we're going to need more sociologists , biologists , city planners and lawyers," says Professor Edward Schneider of the University of Southern California's (USC) School of Gerontology  .  Lawyers can major in "elder law" , which covers everything including nursing-home abuse   and age discrimination . Businessmen see huge opportunities in the elder market because the baby boomers , 74 million strong , are likely to be the wealthiest group of retires in human history. "Any student who combines an expert knowledge in gerontology with , say , an MBA or law degree will have a license to print money," one professor says . Margarite Santosis a 21-year-old senior at USC. She began college as a biology major but found she was "really bored with biology". So the took a class in gerontology and discovered that she liked it . She says, "I did volunteer work in retirement homes and in was very satisfying." Which the aging of America , lawyers can gain interest_.
from the passing of the "elder law" from offering special services to the elderly by increasing their professional knowledge by winning the trust of the elderly to gain their own interests
Question: For an increasing number of students at American universities , Old is suddenly in . The reason in clear : the aging of prefix = st1 /Americameans jobs . Besides the aging of the body--boom   population , a longer life means that the nation's elderly population is certain to grow greatly over the next 50 years . By 2050, 25 percent of all Americans will be older than 65 , up from 14 percent in 1995. The change causes some questions for government and society , of course . But it also creates jobs in medicine and health fields , and in law and business as well. "Besides the doctors , we're going to need more sociologists , biologists , city planners and lawyers," says Professor Edward Schneider of the University of Southern California's (USC) School of Gerontology  .  Lawyers can major in "elder law" , which covers everything including nursing-home abuse   and age discrimination . Businessmen see huge opportunities in the elder market because the baby boomers , 74 million strong , are likely to be the wealthiest group of retires in human history. "Any student who combines an expert knowledge in gerontology with , say , an MBA or law degree will have a license to print money," one professor says . Margarite Santosis a 21-year-old senior at USC. She began college as a biology major but found she was "really bored with biology". So the took a class in gerontology and discovered that she liked it . She says, "I did volunteer work in retirement homes and in was very satisfying." Which the aging of America , lawyers can gain interest_.
A. from the passing of the "elder law"
B. from offering special services to the elderly
C. by increasing their professional knowledge
D. by winning the trust of the elderly to gain their own interests
Answer: