Technically, all of these answers are ways to revise your work. I would go with B, Run a spell check and correct errors because it looks like the most accurate way to edit documents.
To restate the central point of the argument and make a final bid for the audience's support.
That was the answer for Apex, if you're not using this for apex, I still hope I helped somewhat.
સારું પ્રથમ તમારે મારી ભાષા મૂંગું મૂર્ખ સમજવું જોઈએ
The question is fully finished? If not then I cant help out with out the answers and the rest of the question Dx