Final answer:
The inspector is authorized to interview employees privately, access the facility, and ask to visit certain areas in regulatory audits.
Step-by-step explanation:
The inspector is authorized to do all of the above options: interview employees privately, access the facility, and ask to visit certain areas. This is in the context of regulatory audits. Regulatory audits are conducted to ensure compliance with regulations and standards, and inspectors have the authority to gather information and inspect various aspects of the facility and its operations. They may interview employees privately to gather information, access the facility to assess compliance, and ask to visit certain areas to investigate specific issues related to regulatory compliance.