Explanation:

- Option 1: Female line

Marumakkathayam was a matrilineal system of inheritance in Kerala. Property and titles were passed down through the female line, from mothers to daughters, nephews, and grandsons through daughters.

Correct Answer

- Option 2: Male line

This option refers to patrilineal inheritance, where property is passed through the male lineage, from father to son. It is not applicable to the Marumakkathayam system.

- Option 3: Maternal uncle line

While maternal uncles played significant roles in the family, inheritance was not determined through them but through female lineage.

- Option 4: Youngest female line

This is not accurate, as the Marumakkathayam system relied on the broader female lineage, not specifically the youngest female.