Matronymics is the process of naming a person based on the name of their mother or a female ancestor. Option 1, Mallas of Pava, does not fit this description as Mallas are identified by their dynasty name, not through matronymics. Option 2, Videhas of Mithila, are also not known through matronymics; they are named after their kingdom. Yaudheyas, represented in option 3, were a warrior clan and their name doesn`t denote any matronymic lineage.

Option 4, Satavahanas, is the correct answer. The Satavahanas were an ancient Indian dynasty based in the Deccan region. Some rulers of the Satavahana dynasty were named after their mothers, a unique feature reflecting a matrilineal pattern of inheritance or matronymic system. For example, Gautamiputra Satakarni means "Gautami`s son Satakarni". So, it can be seen that the trend of matronymics is clearly visible in the naming convention of the Satavahanas.