Concept: A Mufassir is an interpreter of the Qur'an, while a Hafiz is one who memorizes it.Explanation: The question asks how the Mufassir differs from the Hafiz.The term "Mufassir" refers to a person who explains and interprets the Qur'an.The term "Hafiz" refers to a person who has memorized the entire Qur'an.Therefore, the former (Mufassir) is different because he interprets the Qur'an, not just memorizes it.Thus, the correct option is D.Answer: D. Interprets the Qur'an