The correct answer is: A) Joint family structures.
A tharavad is a matrilineal joint family system found in Kerala, India. It is a traditional system of inheritance and residence in which property is passed down through the female line and families live together in extended households. Tharavads are often large and complex, with multiple generations of family members living together. They are an important part of the social and cultural fabric of Kerala.
Religious institutions, trade networks, and village councils are all important aspects of Kerala society, but they are not the same as tharavads. Religious institutions are organizations that are dedicated to the worship of a particular deity or deities. Trade networks are systems of exchange that connect different parts of the world. Village councils are groups of people who meet to discuss and resolve issues that affect their community.
Tharavads are a unique and important part of Kerala society. They are a system of joint family structures that have been passed down for generations. Tharavads are an important part of the social and cultural fabric of Kerala.