The number of students participating in different school clubs, sorted by grade level, is shown in the table below.
| Club | 9th Grade | 10th Grade | 11th Grade | 12th Grade | Total |
|---|---|---|---|---|---|
| Chess | 12 | 18 | 10 | 20 | 60 |
| Debate | 15 | 10 | 25 | 10 | 60 |
| Art | 20 | 15 | 10 | 15 | 60 |
| Total | 47 | 43 | 45 | 45 | 180 |
Which grade has a population in the Debate Club that is closest to of the total students in the Debate Club?
9th Grade
10th Grade
11th Grade
12th Grade
