All complaints received by the Board shall be investigated by which entity?

The correct entity responsible for investigating all complaints received by the Board is the Division of Professional Regulation. This division is specifically established to oversee various professional licensing boards, including the Funeral Board, ensuring that complaints are handled in a systematic and professional manner. They have the authority and expertise to conduct thorough investigations, assess the validity of complaints, and determine any necessary actions or disciplinary measures against licensed professionals.

The other entities listed, such as the Human Resources Department or the State Attorney's Office, do not have the specific mandate or expertise required for handling professional licensing complaints. The Human Resources Department typically deals with employee-related issues within organizations, while the State Attorney's Office focuses on legal proceedings and criminal matters rather than regulatory complaints. Similarly, the Consumer Protection Agency is dedicated to safeguarding consumers from unfair business practices but is not tasked with the direct investigation of licensing board complaints in the manner described.