The management of the minor league team considered raising admission and parking fees so that the costs would be higher than they had been charged in more than five years.
Meaning: The Management considered raising admission and parking fees. Why? So that fees would be higher than they[fees] were charged in more than five years.
It is interesting to note that the Management only considered raising the fees. The fees were actually not raised. This sentence has some elements of the hypothetical subjunctive, hence the so that has to be followed by would be, could be, or might be, since this is an expression of the future of the past. Based on this, we can eliminate B.
What is the rationale for the use of the past perfect tense
had been? The fees were not raised. The Management of the minor league team only considered raising the fees. We don't have any justification to use the past perfect tense. With this bit of information, we can eliminate A, B, D, and E.
We are left with C. I don't see anything wrong with C. they unambiguously refer to fees. Comparing
would be fees to
fees [that]
were charged seems logical to me. I may be wrong and I stand to be corrected.
Hence, I choose option C as the correct answer.A) so that the costs would be higher than
they had beenAre costs and fees synonymous? I don't think so. At least not in this context. Thankfully, there is already a good reason to eliminate A.
B) so that
they were higher than those
had beenThey seem okay to me since it refers to fees and this is logical.
Were is incorrect. We are referring to the future of the past.
would be is appropriate.
C) so that fees
would be higher than
they wereD) to a higher level than
had beenE) to a level higher than that
had been