What additional course must be completed if you have sponsored sales agents or served as a designated broker?

The correct choice is the Broker Responsibility Course because it is specifically designed to provide the training required for individuals who sponsor sales agents or serve as a designated broker. This course covers important aspects of broker responsibilities, including managing license holders, overseeing real estate transactions, and ensuring compliance with state laws and regulations.

Completing this course is essential for maintaining a broker's license in Texas, as it equips brokers with the necessary skills to provide proper oversight and support to their teams. Understanding these responsibilities helps ensure that all agents operate within the legal framework and uphold the ethical standards of real estate practice.

Other options, such as the Sales Agent Course, Management Course, and Compliance Course, focus on different areas of real estate and do not address the specific responsibilities of a broker in managing a team of sales agents. Thus, they do not satisfy the requirement identified in the question. The Broker Responsibility Course is the only option that directly correlates with the duties of sponsoring sales agents or acting as a designated broker.