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

Dollar-Pound Exchange Rate From 1791.

Explanation:

Rich in looking for the history of exchange rates between the US and Britain should consult the dollar-pound exchange rate which is dated and published from 1791.. This would provide him with the detailed information he requires to make his research as it contains all the exchange rates between the two countries from 1791 till dat

raliegh, north ! hope this