Catalina, Elena, and Pablo run a firm based in the United States that focuses on natural gas extraction that has been growing rapidly for the last few years. They have an opportunity to acquire the rights to a potentially vast and lucrative natural gas field, but they are concerned that if it becomes public, a bidding war might prevent them from getting the rights to it. In order to purchase the rights, the necessary equipment, and hire additional employees, they need to raise capital. Explain in detail what their options are under current securities laws and how they can best raise money for their expansion.