Which of the Following Characteristics Are Correct Regarding the New

Which of the following characteristics are correct regarding the new style option quotation system?
I. The system is known as OPRA - the Options Price Reporting Authority code.
II. The system has 3 data elements.
III. The system has 21 characters.
IV. The system has 5 characters.
V. The system is known as the OCC Series Key.
VI. The root symbol is the underlying stock's ticker symbol.

A) I, II, III, and VI
B) II, III, IV, and V
C) I, II, and IV
D) II, III, V, and VI
E) III, V, and VI