In the product market A. productive resources are bought and sold.
B. Producers sell goods and services to consumers
C. A nations total output of goods and Services increases
D. the amount of output produced by a given amount of inputs is measured

I believe it's a

Explanation:

I think it's a because product market is the marketplace where final goods or services are sold to businesses and the public sector.

first, the romans stayed isolated because they had to defend their own territories from neighboring cities that were harassing them, like the etruscans. second, once the romans managed to defeat their neighbors, and started to expand their territory, they started to build roads and bridges. finally, now that the romans have covered their territory with roads functioning as highways, they could mobilize their legions faster to assemble larger military units in a specific place

it depends on which society you are referring to. many civilization performed rituals so the gods would with their growing season but the most well known is that of the aztecs. they would make sacrifices, usually animals, but sometimes humans as well.