The North American Industry Classification System (NAICS)codes

The North American Industry Classification System (NAICS) codes:

A) will soon be replaced by the strategic industrial classification (SIC) .
B) is published by the North American Treaty Alliance.
C) organizes all industries in our economy into 20 broad sectors.
D) has little relevance for marketers outside the United States.
E) are top secrets which cannot be shared with outsiders.