Consider the following pairs
| Types of Unemployment | Features |
| 1. Disguised | More people are employed than actually needed |
| 2. Structural | Mismatch between the jobs and the skills of the available workers in the market. |
| 3. Frictional | occurs due to a lack of requisite skills |
| 4. Vulnerable | The time lag between two jobs. |
How many pairs given above is/are correctly matched?
1
Only one pair
2
Only two pairs
3
Only three pairs
4
All four pairs