In report writing, or any case of technical writing, you must properly give credit to your resources or references. When you paraphrased the findings of another person, you can cite their work as references in the bibliography. But if you want to retain their statements word for word, you use quotation marks ("). Before doing so, you must use introductory words like "according to", "based on what he said", "and I quote", or any style that you want.
From the choices, the correct use of quotation would be letter B.
