B。从原文可直接得到答案“0pportunities for rewarding work become fewer for both men and women as they grow older．对于年纪越来越大 的人来说机会越来越少”。
【原文大意】
文中介绍了随着年龄的增长，男性和女性的工作机会都会越来越少。那些由于失业和经济需要而寻找工作的人大多是年纪大的女性。她们在工作中的表现却很勤奋，很少缺勤。她们的工作更加可靠。比年轻人更愿意学习。但是她们仍然得到很少的薪水，在未来仍面临着困难的生活。政府所发表的一些改善这一局面的政策对她们来说作用不大。
【听力原文】
  Opportunities for rewarding work become fewer for both men and women as they grow older. After age40, job hunting becomes even more difficult. Many workers stay at jobs they are too old for rather than face possible rejection.  Our youth-oriented, throw- away culture sees little value in older people. In writer Lilian Hellman's words, they have "the wisdom that comes with age that we can't make use of. "
  Unemployment and economic need for work is higher among older women, especially minorities, than among younger white women. A national council reports these findings: Though unemployed longer when seeking work, older women job-hunt harder, hold a job longer with less absenteeism (缺勤 ), perform as well or better, are more reliable, and are more willing to learn than men or younger women. Yet many older women earn poor pay and face a future of poverty in their retirement years.  When"sexism meets ageism, poverty is no longer on the doorstep--it mores in," according to Tish Sommers, director of a special study on older women for the National Organization for Women.
  Yet  a  1981  report  on  the  White  House Conference on Aging shows that as a group, older Americans are the "wealthiest, best fed, best housed,healthiest, most self-reliant older population in our history. " This statement is small comfort to those living below the poverty line, but it does explode some of the  old  traditional  beliefs  and  fears. Opportunities for moving in and up in a large company may shrink but many older people begin successful small businesses, volunteer in satisfying activities, and stay active for many years. They have few role models because in previous generations the life span was much shorter and expectations of life were fewer. They are ploughing new ground.
  Employers are beginning to recognize that the mature person can bring a great deal of stability and responsibility to a position. One doesn't lose ability and experience on the eve of one's 65th or 70th birthday any more than one grows up instantly at age21.