Which of the following describes what is done with foreign currency in the currency exchange market?

a. bought and sold using different foreign currencies

b. taxed by the u. s treasury department

c. traded for important goods and services

d. used to pay for foreign governments' bond issues
(figured it out, its a)

A. . Bought and sold using different foreign currencies

Explanation:

Usually, the currency exchange market is used by people as a part of their investment portfolio.

The value of ones currency over other currencies is really volatile. This uncertainty created opportunities for investors to obtain a profit by purchasing a certain currency when the value is low and re-sell it when the value is higher.

they protect against unsafe foods and medicines being sold

explanation:

answer; archaeologists;