What allowed currency in the ancient world to work as a tool for the exchange of goods? It represented an agreed-upon value. It represented an amount of available resources. It was used as a standard measurement of goods. It demonstrated how much people would pay for a product.

Correct answer for apex is d.

Jackson  said nullification 'means insurrection and war,' and called it a treasonous attack on america. the second aspect of the  force bill  was the passing in congress of a lower tariff in 1833. this was offered as a compromise to avoid conflict with south carolina, and to attempt to defuse the tense situation.source google

The byzantine empire.