The correct answer to this open question is the following.
Michelle is the Chief Executive Officer of a company. It is the duty of her company's board of directors to counsel Michelle on various matters of the company. However, it is up to Michelle if she wants to seek their opinion or not. She may choose to pay heed to the opinions of the board of directors or ignore them. In this scenario, the board of directors of the company is an example of a form of staff authority called advise authority.
When a company has this type of authority, experienced members of the board of directors can share their knowledge and experience with the Chief Executive Officer. The purpose of this is that knowing that the board of directors is formed with valuable and experienced people, the CEO can be advised in different areas where he/she does not have the same experience or talent. It is up to the CEO to do what they say. But it is always recommended that the CEO pays close attention to any kind of counseling.