Refer to the table below:
| 0-9 years | 10-19 years | 20+ years | Total | |
|---|---|---|---|---|
| Group A | 7 | 14 | 9 | 30 |
| Group B | 6 | 4 | 20 | 30 |
| Group C | 17 | 12 | 1 | 30 |
| Total | 30 | 30 | 30 | 90 |
If one participant is selected at random, what is the probability that the participant is in the 10–19 years group, given that the participant is from Group C? (Express your answer as a decimal or fraction, not as a percent.)
