Which detail best supports the key idea that the mother wants to serve others?

Without any specific context, it is difficult to determine the best detail that would support the key idea that the mother wants to serve others. However, some possible details that could support this idea include:

1. The mother frequently volunteers at local community centers and charities.
2. She is always the first to offer help or support to her friends and neighbors when they are in need.
3. The mother is actively involved in organizing and participating in fundraisers for various causes.
4. She regularly takes part in community service projects, such as cleaning up parks or assisting in local food drives.
5. The mother has dedicated her career to a profession that focuses on helping or caring for others, such as nursing or social work.