How many castes were used in Aryan society?
○5.
○3.
○6.
○4.​

Explanation:

four castes

These four parts became the four castes of people in Aryan society. Purusha's mouth became the Brahmins, his arms became the Kshatriyas, his legs became the Vaishyas, and his feet became the Shudras. The highest caste in the Aryan caste system was the Brahmins.

try something like republic or democracy joined or something because its talking about a election party.

  b.

there are isolated pockets of farming, generally around rivers and oases, which are used for irrigation.