Rich is researching for an economics paper on the history of exchange rates between the us and great britain. the best choice for rich to use is a) currency converter. b) european central bank statistics. c) dollar-pound exchange rate from 1791. d) exchange rates: us$ and 41 currencies (historical).

D) Exchange Rates: US$ and 41 Currencies

Explanation:

This is because his research is based on historical facts .

By using all the other currencies rich is able to identifie the strennth of the currencies against each other.

The other reason is that the USD is the unit of measure on other currencies hence comparering it against other currencies then that of the pound makes it easier to identify how this currencies compare.

jesse stuart was a teacher in rural kentucky.

-seth

people can see all information on a topic and believe it because of technology