In the caste system, inequalities are created by some characteristics like religion, lineage, ethnic connection, and race that an individual gets by birth and they are believed not to change. Throughout their lives, individuals live in the caste systems in which they were born. In the stratification system of caste, castes are solid and movements between castes do not happen. There are four groups in the caste systems and Kahatriyases who are governors and soldiers are positioned under Brahmans. This caste is created with military aristocrats and princes who are responsible for protecting the social system and knowledge. The correct answer is D.