Step 1: About the book Emile.
"Emile, or On Education" is a famous book written in 1762. It discusses the philosophy of education and explains how children should be educated according to their natural development.
Step 2: Contribution of Jean Jacques Rousseau.
Jean Jacques Rousseau, a French philosopher, wrote the book "Emile". In this book, he emphasized natural education, child-centered learning and the importance of freedom in the development of a child.
Step 3: Analysis of options.
- (A) Rousseau: Correct. He wrote the famous educational work "Emile".
- (B) Plato: Incorrect. Plato wrote philosophical works such as "The Republic".
- (C) Aristotle: Incorrect. Aristotle wrote works on philosophy, logic and science.
- (D) Dewey: Incorrect. John Dewey wrote about pragmatism and progressive education.
Step 4: Conclusion.
Therefore, the famous book "Emile" was written by Jean Jacques Rousseau.
Final Answer:} Rousseau.