Which of the following statements are TRUE?

• Section 6 of the Real Estate Services Act establishes that the managing broker is responsible for the supervision of the associate brokers and representatives who are licensed in relation to his or her brokerage.
• A managing broker commits professional misconduct if he or she fails to adequately supervise the representatives licensed to the brokerage.
• A brokerage is responsible for any wrongdoings by its licensees in carrying out the duties of their employment.
• A managing broker must provide to the Real Estate Council any information reasonably required by it in an investigation regarding a licensee.

1. A,B,andDonly
2. AandConly
3. BandDonly
4. All of the above