Concept:"Ummul-kitab" means "Mother of the Book" and is another title for Surah Fatihah.Explanation:Adh-Dhikr is one of the names of the Qur'an itself.Similarly, Ummul-kitab is a well-known title given to Surah Fatihah.Surah Fatihah is the first surah of the Qur'an and is also called Ummul-kitab.Among the given options, Fatihah is the correct match.Answer:C. Fatihah