Which of these is covered by workman's compensation?

The correct answer is that an employee working at a private company for at least 35 hours a week for 13 weeks is covered by workman's compensation. Workman's compensation generally provides coverage for employees who are injured or become ill as a result of their job responsibilities while they are working for an employer.

To qualify for workman’s compensation, an employee typically needs to meet certain criteria, such as having a set number of hours worked per week and a defined duration of employment, which is reflected in this option. It is designed to protect workers who are performing their duties during regular employment.

In contrast, the other options do not meet the criteria for coverage. Volunteers for non-profit organizations are usually not covered because workman’s compensation is intended for employees rather than unpaid volunteers. Similarly, contractors working on a freelance basis are often considered independent contractors, which typically means they do not qualify for workman's compensation as they are not in an employee-employer relationship. Lastly, part-time employees working under 20 hours a week might not meet the minimum work requirements often set by state laws for coverage.

Overall, the focus of workman's compensation is on individuals who are classified as employees and meet the criteria set forth regarding their work hours and duration of employment,