Which of the Following Statements Is Incorrect

Which of the following statements is incorrect?

A) The North American Industry Classification System (NAICS) was created jointly by the United States,Canada,and Mexico.
B) For the NAICS,economic units with similar production processes are classified in the same industry,and the lines drawn between industries demarcate differences in production processes.
C) NAICS provides enhanced industry comparability among the three NAFTA trading partners.
D) NAICS divides the economy into twenty sectors.
E) In most sectors,NAICS provides for compatibility at the industry (six-digit) level.