Which Is the Most Accurate Statement About the Underground Economy

Which is the most accurate statement about the underground economy?

A) The underground economy includes not only street peddlers and low-life entrepreneurs,but also accountants and doctors.
B) Pirated CD's and videos are part of the underground economy.
C) The underground economy adds hundreds of billions of dollars of goods and services to our economy.
D) The underground economy provides employment to hundreds of thousands of illegal immigrants.
E) All of the statements are true.