There is a saying that if the United States​ sneezes, Canada catches a cold. In common understanding it means that a recession in the United States causes a recession​ (perhaps a more severe​ recession) in Canada. Source: Jean​ Boivin, "The​ 'Great' Recession in​ Canada: Perception vs.​ Reality," Bank of​ Canada, March​ 28, 2011. Why would the Canadian economy follow the U.S. economy into a​ recession?
a. ​Canada's economy is not dependent on the recession in the United States.
b. A recession in the U.S. causes Canadian exports to​ increase, consumers and investors in Canada become optimistic and enhance purchases causing a deficit.
c. A recession in the U.S. causes imports from Canada to​ fall, consumers and investors in Canada become pessimistic and curtail purchase.
d. A recession in the U.S. causes imports in Canada to​ raise, consumers and investors in Canada become optimistic and enlarge purchases.