Explanation:

- Correct Answer: Option 2 Structural Mobility

- Structural mobility occurs when large-scale changes in society create opportunities for people to move up or down the social ladder. An example is when advancements in computer technology open opportunities for increased wealth.

- Intragenerational Mobility:

- This is a change in a person’s social status during their lifetime. An example is a person moving from a low-income job to a high-income job.

- Intergenerational Mobility:

- This describes changes in social status that occur from one generation to the next. For instance, children achieving higher social status than their parents.

- Structured Exchange Mobility:

- This concept involves social mobility that happens when one group moves up and another moves down in a structured system.