Free time can serve a shared purpose.
Supporting a children’s group in a sports club, helping at a neighbourhood event or organising an activity can be voluntary work. In this question, the key is a voluntary, unpaid contribution. The location alone does not establish whether someone is paid.
Volunteers take on tasks and responsibilities. Unpaid therefore does not mean unimportant or without commitments. Someone accepting a task coordinates with the others involved, but this engagement differs from ordinary paid employment.
The other three answers
A job title alone does not define volunteering.
They work as soldiers.
Being a soldier is a different role. A person may volunteer separately, but military service itself is not the unpaid club work described here.
They work in the federal government.
Working in the federal government describes a state role, not voluntary activity in free time. Volunteering does not require holding government office.
They work in a hospital and earn money doing so.
This option expressly describes earning money for work. Hospitals may also have volunteers, but the paid employment in the option is not the example sought.
Reimbursement is not the same as a wage.
Depending on the activity, necessary expenses may be reimbursed or allowances provided. The test’s word “unpaid” explains the distinction from paid employment; it does not mean that every kind of payment is forbidden.
The German term Ehrenamt also has legal uses, such as lay judging. Such public duties can involve particular obligations to accept an appointment. This question refers more narrowly to people volunteering in their free time.
Volunteering · Civic education ↗Voluntary time for others, without a wage: volunteering.
Look for the combination of voluntary and unpaid. A helpful profession is not automatically volunteering, and a club can also employ paid staff.
Three words for this question
- ehrenamtlichvoluntary / honorary
- Here: a voluntary contribution outside paid employment.
- der Vereinclub / association
- An organised group pursuing a shared purpose.
- die Auslageout-of-pocket expense
- Money someone initially pays personally for a shared task.