Concept:The Muwatta of Imam Malik is known as the earliest major written collection of hadith.Explanation:Imam Malik ibn Anas compiled the Muwatta in the 8th century, around 179 AH. The word “Muwatta” means “the well-trodden path.” This work is unique because it combines hadith with the legal rulings and practices of the people of Madinah. It was the first major book to arrange hadith systematically under chapters of Islamic law. The later collections, such as Sahih Muslim, Sunan Ibn Majah, and Musnad Ahmad, were all written after the Muwatta. Therefore, among the options given, Muwatta Malik is the first major written work of hadith.Answer:C. Muwata Malik