A school has students. All students take either Spanish or French. The table below shows the number of students in each language class by grade level.
| Spanish | French | Total | |
|---|---|---|---|
| 9th Grade | 180 | 120 | 300 |
| 10th Grade | 150 | ? | |
| 11th Grade | 130 | 100 | 230 |
If there are students in 10th grade, how many 10th-grade students take French?
100
110
120
130
