How did increased trade affect the way that ancient people exchanged goods and services? It reduced the demand for goods and services.
It made goods and services more expensive.
It made different civilizations interact less often.
It led to standard measures and then currency.

It led to standard measures and then currency.

Explanation:

The increase in trade enables people from different culture/society to engage and trade with one another.

In the past, a problem can occurs if both parties involved do not used the same medium of exchange. (for example, some society used gold to as a medium of transaction while some society used barter method for transaction)

As the times goes by, more and more people start looking for solution to solve this issues.  Standard measures and currency are the things that can be used for that.

Standard of measures allowed people to ensure that they get the most value from their transaction (for example buying 1 bag of rice can be riskty since we can't really know how much rice contained in it. Buying 1 kg of rice on the other hand make us understand exactly what we're buying), and currency allowed people to use one recognized medium of exchange for the transaction.

veto bills

explanation:

ok sorry the answer is a. by their religion