In Terms of Growth Rates in Output, What Do the Data

In terms of growth rates in output, what do the data from 1978 until 2011 illustrate about the relationship between Canada and the United States?  

A)  Canadian real GDP grew faster than U.S. real GDP despite similar patterns of economic fluctuations. 
B)  U.S. real GDP doubled while Canadian GDP was stagnant. 
C)  The United States and Canada experienced recession in roughly the same years. 
D)  Canada experienced only one recession while the United States experienced three.