Which of the following statements concerning the brochure rule is not correct? a. Every SEC registered investment adviser must deliver to each prospective advisory client a written disclosure statement, or "brochure", describing the adviser's business practices and educational and business background. b. The rule does not require an investment adviser to deliver a brochure to existing clients every year. c. To comply with the brochure rule, an investment adviser may deliver Form ADV Part 2B or another document containing at least the information disclosed in Form ADV. d. Advisers are required to describe their practices, investment strategies, compensation arrangements, fees, conflicts of interest and disciplinary history to clients in "plain English