Study the following table and answer question.
Number of students appeared in an examination from five cities:
| Cities | No. of Students (in thousands) |
Ratio of students passed and failed |
| A | 54 | 5 ∶ 04 |
| B | 126 | 4 ∶ 03 |
| C | 84 | 10 ∶ 11 |
| D | 96 | 9 ∶ 07 |
| E | 132 | 6 ∶ 05 |
The number of cities in which passing percentage of students is below 50% is:
1
1
2
3
3
2
4
4