Write it in the third person "They"
The answer is B, because if you were to try and see both sides of shop lifting it would still seem wrong, and you wouldn't say that finishing college was easy and that you didn't have to try and option D just doesn't really make sense. And it is true that you could think all students should be required to volunteer in their community but just as easily you could think that they shouldn't have to. Both sides have good points for this argument.
The correct answer is B. This answer contains a summary of the advantages of cloud storage, which can be developed in the essay as it was stated in the main claim. Also, this answer compares the advantages of cloud storage over traditional data storage; this detail was mentioned in the main claim, and it is restated in the conclusion. None of the other answers contain information restating what was directly said in the claim.