Question: What's the main idea of this paragraph?

The data show that as students have increasingly shouldered the ever-rising cost of tuition, they have defected from the study of the humanities and toward applied science and "hard" skills that they bet will lead to employment. In other words, a college education is more and more seen as a means for economic betterment rather than a means for human betterment. This is a trend that is likely to persist and even accelerate.

A、A college education is a means for human betterment.
B、A college education is more and more seen as a means for economic betterment.
C、 They have defected from the study of applied science and "hard" skills.
D、Students have increasingly shouldered the ever-rising cost of tuition