Answer:
Horizontal mobility
Step-by-step explanation:
This question is incomplete, the options missing are:
a. vertical mobility
b. horizontal mobility
c. situational mobility
d. structural mobility
In sociology, the term horizontal mobility refers to the change from one position to another but without it affecting your social status. In other words, you can experience a change in your work position but this change doesn't make you move up or down in the social hierarchy.
In this example, Anne is promoted. She receives a small increase in pay but this change doesn't impact her position in the social class structure. We can see that she experienced a change in her position but this promotion didn't really affect her position in the social hierarchy. Thus, Anne most likely experiences horizontal mobility.