At a community science festival, each of 240 students selected exactly one project track. The table shows whether each student brought a reusable water bottle.
| Project track | Brought a reusable water bottle | Did not bring a reusable water bottle | Total |
|---|---|---|---|
| Engineering | 45 | 75 | 120 |
| Environmental science | 63 | 57 | 120 |
| Total | 108 | 132 | 240 |
If one of the students who brought a reusable water bottle is selected at random, which choice is the probability that the selected student chose the environmental science track?