(B) The number of courses per semester for which
full-time students are required to enroll is
higher this year than any time in the past.: Direct correlation- More number of courses would mean that even with same fees per course, total money required to be spent on tuition will go up- hence the inaffordability
(C) The cost of living in the vicinity of the
university has risen over the last two years.: If students are spending more on living costs, they might be getting left with less money to spend on tuition- hence the inaffodability.
(D) The university awards new students a large
number of scholarships that are renewed each
year for the students who maintain high grade
averages.: University awards new students this scholarships- not sure if the students who could afford tuition earlier and cant afford it now are new or not
(E) The university has turned many of its part-time
office jobs, for which students had generally
been hired, into full-time, nonstudent positions.: Implies that the student who might be earning extra money helping them afford tuition no longer have those jobs or the extra money- hence the inaffordability.
Faculty salaries at the university have risen
slightly over the past four years.: So what? No where any hint is given, or an assumption can be made as to faculty salaries are to be paid by students. in fact, tuition mostly is supposed to cover faculty salaries. Since this cant be an expenditure attributed to the students, this cant resolve the discrepancy of inaffordability.