Answer:
Madeline is employed by a shipping company, William works for the federal government, and Fred is self-employed.
Step-by-step explanation:
Madeline is a logistic manager. Her job revolves around planning how goods are sourced, stored, and transported safely to their intended destined. She is most likely working in the transport and logistics industry. A shipping company is in this industry.
William is a Safety Inspector for OSHA, which is a regulatory agency for the United State Government, under the department of labor. Its role is to promote and advocate for employee's health and safety issues in the workplace. William is, therefore, a government employee.
Fred is self-employed. He often shifts from being a limousine driver to a taxi driver. He can moonlight because he is not an employee of a particular company.