A survey asked 21 residents about their age. The results are summarized in the table below.
| Age Range | Number of People |
|---|---|
| 10-19 | 4 |
| 20-29 | 6 |
| 30-39 | 5 |
| 50-59 | 3 |
Based on the table, which of the following values could be the median age of the surveyed residents?
25
32
45
50
