请帮忙解答一道逻辑题

Recent estimates predict that between 1982 and 1995 the greatest increase in the number of people employed will be in the category of low-paying service occupations. This category, however, will not increase its share of total employment, whereas the category of high-paying service occupations will increase its share.

If the estimates above are accurate, which of the following conclusion can be drawn?

A. In 1982 more people were working in low-paying service occupations than were working in high-paying service occupations.

B. In 1995 more people will be working in high-paying service occupations than will be working in low-paying service occupations.

C. Nonservice occupations will account for the same share of total employment in 1995 as in 1982.

D. Many of the people who were working in low-paying service occupations in 1982 will be working in high-paying service occupations by 1995.

E. The rate of growth for low-paying service occupations will be greater than the overall rate of employment growth between 1982 and 1995

答案是：A, 就是先不明白为什么，希望有人可以帮忙一下，谢谢：）