George WBush's Council of Economic Advisers Issued a "White Paper" on on June

George W.Bush's Council of Economic Advisers issued a "White Paper" on June 20,2007,to assess the impacts of immigration on the United States.The report concluded that __________.

A) immigration not only helps fuel the country's economic growth but also has a positive effect on the income of native-born workers
B) immigration helps fuel the country's economic growth but has a negative effect on the income of native-born workers
C) immigration helps fuel the country's economic growth in the aggregate but has a positive effect on the income of native-born workers only in certain locales
D) immigration helps fuel the country's economic growth and has a positive effect on the income of native-born workers only in certain locales