Concept:In Islam, ritual impurity (Hadath) is divided into two main categories.Explanation:The two types of impurities are Hadath Akbar (major impurity) and Hadath Asghar (minor impurity).Hadath Asghar refers to minor impurities that require ablution (wudu) to be removed.Hadath Akbar refers to major impurities that require a full ritual bath (ghusl).Therefore, the missing term that pairs with Hadath Akbar is Hadath Asghar.Answer:B. Asghar