5. Choose the sentence that expresses the thought most clearly and effectively and that has no errors in structure.
A) In order to pass this test, it is necessary for us to study as hard as we can.
B) To pass this test, we must study as hard as we can.
C) If we are going to pass this test, it is necessary for us to study as hard as we can.
Choice B is the most effective subordination of ideas. The other choices are wordy and lack clear subordination.