Answer:
c. slowly decreasing.
Explanation:
On average, people with higher education tend to have a different approach in marriage compared to people with low or no education.
People with high education tend to understand the importance of solid monetary foundation to fund their family. This make their family become more stable and they do not have to face constant pressure from the upcoming bill (which often lead to fights).
Not only that, they also develop deep understanding in human needs beside the physiological . Highly educated couples tend to help each other achieve self-actualization which contributed to their overall happiness in life.
All of these make divorce rate among people with college degrees slowly decreasing.