Consider the following pairs:
| Railway Zone | Headquarter |
| 1. North Eastern Railway | Gorakhpur |
| 2. East Central Railway | Kolkata |
| 3. South East Central Railway | Bilaspur |
| 4. South Eastern Railway | Secunderabad |
How many of the above pairs are correctly matched?
1
Only one
2
Only two
3
Only three
4
More than one of the above
5
None of the above