The method of incorporating evidence employed to depict how Milton used language would be 'quoting' as it would help support or substantiate the arguments or claims proposed in the paper most effectively. Quotation from the actual/original source would assist the readers to understand, analyze, and evaluate the idea of the language offered by you in the paper by comparing it to the original work you've quoted. This would help persuade the audience more conveniently and effectively to believe in the claims offered. Thus, <u>option A</u> is the correct answer.
The best method for incorporating evidence in this case would be quoting. This is because the original text is easily accessible, and because, if the reader were to question your argument, he would be able to easily compare your analysis with the text. Moreover, your claim refers to the use of language in the book, which does not require secondary sources in order to be interpreted.