Big Book Test 4 Section 1 Q6

Can someone clarify a few things in this question?

  1. How are we supposed to know the meaning of the phrase “Expense cannot be numbered”? I assumed that it means that expenses are too much (or even if we take the actual meaning which is like expense is not on the list, still has a negative connotation)
  2. I understand that “expense” is an example of blank 1, so blank 1 will be negative. Something like “bad things” or “disadvantages” (which narrows the options down to C and E)
  3. Idea 2 will support idea 1 because of the semicolon (is this right?). Because if it is, with the OA E, idea 2 seems positive, no? Because if things can be achieved with frugality, then that’s a good thing - where am I going wrong?p

P.S. Is “among” a support word?