A．The Nasdaq Stock Market.
B．The US Congress.
C．The Securities and Exchange Commission.
D．The National Association of Securities Dealers Automated Quotations.

A．To explain why Wright’ s style of architecture is often criticized.
B．To explain how Wight handled space and used the materials in construction.
C．To describe how Wright became a renowned architect.
D．To describe the positive aspects of Wright’ s architecture.