The Bank of Canada ________.
A) has no influence on the exchange rate
B) sells Canadian dollars to the United States in an attempt to depreciate the Canadian dollar and increase Canadian exports to the United States
C) alternates between a flexible, fixed, and crawling peg exchange rate policy depending on economic conditions
D) follows a flexible exchange rate policy, although the Bank's actions can impact the exchange rate
E) buys Canadian dollars from the United States in an attempt to depreciate the Canadian dollar and increase Canadian exports to the United States