What are 'Anuloma' and 'Pratiloma' in the context of ancient Indian society?

During the post-Gupta and early medieval periods, a significant change was observed in the economic status of the Shudras. According to the observations of the Chinese traveler Hiuen Tsang, the Shudras were primarily described as:

Match List-I with List-II: List-I (Meanings) (A) When descent is traced through the mother (B) Barbarians or outsiders of the Brahmanical order (C) The first section of Mahabharata (D) Marriage within a kin group, caste, or a group living in the same locality List-II (Terms) (I) Adi-Parvan (II) Endogamy (III) Matriliny (IV) Mlechchhas Choose the correct match from the options given below: