A national non-profit organization conducted a survey to understand the motivations of its volunteers. They randomly selected 500 volunteers from their national database of active volunteers. The table displays information for the 200 volunteers in the sample who have served with the organization for more than 2 years.
| Years of Service | Community Impact | Personal Growth | Total |
|---|---|---|---|
| years | 150 | 50 | 200 |
| years | 200 | 100 | 300 |
| Total | 350 | 150 | 500 |
Which of the following is the largest population to which the results of the study can be generalized?
The 200 volunteers in the sample who have served for more than 2 years.
The 500 volunteers in the sample.
All volunteers who have served with the organization for more than 2 years.
All active volunteers in the national non-profit organization.