How did portable belief systems become advantageous for travelers and merchants in Era 3?

disequilibrium means that either supply is greater than the demand for an available good, or that the demand for a product outstrips the available supply. it implies that the price for a is either too low creating large demand, or too high creating a large surplus of supply.

aa dikha du tujhe mera wala dance

the answer should be a. the sui empire, the tang empire extended from korea in the west to manchuria in the east.