big , time
genuine , intelligence
marginal , expenses
certain , expertise E. obvious , modifications
Answer is Wrong!
Answer is Right!
The correct answer is C. marginal, expenses.
The charges made in the system were so marginal that they didn’t require any expenses. This means that the charges were very small and did not require any additional money to be spent.
The other options are not correct because they do not make sense in the context of the sentence.
- Option A, big, time is not correct because the charges were not big and did not require a lot of time.
- Option B, genuine, intelligence is not correct because the charges were not genuine and did not require any intelligence.
- Option D, certain, expertise is not correct because the charges were not certain and did not require any expertise.
- Option E, obvious, modifications is not correct because the charges were not obvious and did not require any modifications.