After earning an advanced degree and securing a prestigious job, jess reflects on how different her position in the social class hierarchy is than her parents' position. she is experiencing

The correct answer is: Intergenerational mobility.

Explanation: Intergenerational mobility can be understood as the changes in social positions that may occur in a family from one generation to the next. These changes can take place for a great number of reasons, including education, lifestyle choices and economic context.

In this particular case, Jess is experiencing Intergenerational mobility because she earned an advanced degree and secured a prestigious job, distacing herself from the social position that her parents had.