______ is to be treated as a broad all-India aggregative classification.

Varna

The correct answer is Option 2: Varna

The most common interpretation is to treat varna as a broad all-India aggregative classification, while jati is taken to be a regional or local sub-classification involving a much more complex system consisting of hundreds or even thousands of castes and sub-castes. This means that while the four varna classification is common to all of India, the jati hierarchy has more local classifications that vary from region to region.