A it is.
The total national expense on higher education rose significantly during the past two years. This increase occurred contrary to previous assessments made by the Board of Education, and in spite of the fact that tuition costs in universities and colleges did not change during the same period of time.
All of the following statements, if true, help to explain the Board of Education’s erroneous assessments, EXCEPT:
This question is DO NOT STRENGTHEN type and we are looking for statement that doesn't explain why spendings increased. Since tuition did not change, the increase could be result of higher number of enrolling students or increase in costs, related to education, such as students loans interest rate, transportation or living expenses
A. a growing number of students use their parent’s savings to pay for their higher education. - this is actually a good fit, because the option doesn't tell anything about increase in spendings per student, or increase of students; the option concerns SHARE of student that finance their education expenses with parents' support.
B. many colleges raised the prices of dormitories and students’ services such as private tutors or book lending - this option provides one reason why expenses increased. Students now have to pay more, therefore higher expenses.
C. the average interest rate of students loans rose last year by five percent - this option provides another reason why expenses increased.
D. the demand for a Master’s degree has become more prevalent in many occupations. - from this we may infer that increased demand for Master led to higher number of people becoming students => total (lets say, countrywide) expenses rose accordingly,
E. many students preferred to apply to state universities instead of colleges, in spite of the higher tuition - as students shifted from colleges to universities, which have higher tuition costs, the students' expenses rose accordingly, therefore answer strengthens the statement.
Since all, expect A, strengthened the statement, we are left with A.