What does the author mean by "better off" in Paragraph 3

A．Some families are too poor to pay the full tuition.
B．The parents do not favor the form of loans.
C．Paying the tuition makes the parents feel humble.
D．Those in great need may not get the aid.

A．The difficulty of paying the tuition.
B．The increasing tuition in the university.
C．The far-sight of the parents.
D．The promising future of Katie.