The second alternative is correct (B).
Alternatives (A), (C) and (D) are essential in an argumentative essay.
The author needs to have a clear and objective argument that is evidence-based and project completion must be striking.
However, the exercise asks about the review process, which is the time to make sure that the style and the argumentative tone are framed with the evidence and the conclusion, that is, it is a verification of the harmony of the argumentative essay.
