Comprehension Passage
Direction: Study the following information carefully and answer based on it.
| Banks | Total account | Dormant account |
| IDBI | 1000 | 200 |
| ICICI | 500 | 100 |
| SBI | 2000 | 500 |
| HDFC | 1500 | 300 |
| BOB | 1200 | 400 |
Find the respective ratio of dormant accounts of BOB to active accounts of SBI.
1
4:15
2
3:8
3
7:15
4
5:8
5
5:7