Can someone help me on Peter Singers article called Famine, Affluence and Morality.?

a. What is Singer’s goal in his article and can you present his arguments in relation to that issue? b. What are three counter arguments to Singer’s position that he addresses in this article? Can you indicate Singer’s responses to those counter arguments? c.Can you define Singer’s concept of marginal utility and identify how it relates to his arguments? d. Compare how the ideas of duty and charity change in Singer’s proposed world? e. Afterwards can you give me your personal response to Singer’s position? It could be about you supporting him or against him or somewhere in the middle. I know most people have not read his article but would like to see what everyone says. I know that his big goal was to shed light and bring awareness to the way people suffer in the world due to poverty and natural disasters.