Answer:
The correct answer is - "What's natural isn't always what's ethical. Anyway, we don't have to eat meat."
Explanation:
Michaell Pollan counters the argument, that states that "Animals kill each other all the time. it is natural. Why can not we?", by that whatever is natural is not always ethical and we do not have to eat meat.
To explain this we need to understand that humans depend mostly on vegetables and plant products so we do not need to kill others for food like animals. He also said that killing is unethical and only something natural it does not mean that it is ethical as well.