What is required for a security to be listed on the OTCBB?

A security must meet specific requirements to be listed on the Over-the-Counter Bulletin Board (OTCBB). One of the primary requirements is that the issuing company must be an SEC filer. This means the company needs to regularly submit reports and financial statements to the Securities and Exchange Commission, ensuring a level of transparency and regulatory oversight. Additionally, a minimum of one market maker must be willing to quote the security on the OTCBB. This market maker plays a crucial role in facilitating trading and ensuring liquidity by being ready to buy and sell the security.

This combination of an SEC filing status and the presence of a market maker is essential for the integrity and stability of the trading environment on the OTCBB, as it helps protect investors by assuring them that information about the company is available and that there is someone to facilitate buying and selling of the stock. The other options provided do not meet the necessary criteria, such as having a sufficient number of market makers or lacking any requirements, which would not support the regulatory standard set for the OTCBB.