Which of the Following Statements Concerning the Standard Industrial Classification

Which of the following statements concerning the Standard Industrial Classification (SIC) is true?

A) The SIC has 272 sections, 88 divisions, 200 groups, 50 classes and 191 subclasses.
B) The SIC has 12 sections, 20 divisions, 200 groups, 5 classes and 91 subclasses.
C) The SIC has 21 sections, 88 divisions, 272 groups, 615 classes and 191 subclasses.
D) The SIC has 21 sections, 20 divisions, 200 groups, 500 classes and 191 subclasses.