stressed out that this has to be Ethics work

Hello,The assignment is to read chapter of an Ethics book and critically discuss it. Professor stressed out that this has to be Ethics work, not personal opinionated and not political science essay. He stated that we have to critically discuss it with ethical reasoning. He said that in the last part we can devote like one page of our critical opinion and interpretation of author but it has to be ethical. Professor will use turnitin academic plagiarism software, so its very important not to copy/paste anything without proper quotation.The books is: What money cant buy by Michael Sandel.
The chapter which we have to work on is 3rd: How markets crowd out morals. Chapter is only about 15 pages long.