Ancient Indian Society

Step 1: Understanding the Concept:
The question requires matching Sanskrit and sociological terms related to family, kinship, and marriage with their correct definitions.
Step 2: Detailed Explanation and Matching:

(A) Term used by the Sanskrit texts to designate families: The Sanskrit term for family or lineage is (I) Kula.
(B) Tracing descent from father to son: This system of tracing lineage through the male line is known as (III) Patriliny.
(C) The practice of a man having several wives: This form of marriage is known as (II) Polygyny. (Polyandry is when a woman has several husbands).
(D) The gift of a daughter in marriage: This is a central ritual in a Hindu wedding and is known by the Sanskrit term (IV) Kanyadana ('kanya' means daughter, 'dana' means gift).
Step 3: Final Answer:
The correct pairings are: A-I, B-III, C-II, and D-IV. This combination corresponds to option (2).