One Possible Explanation of the Higher Unemployment Rate in Canada

One possible explanation of the higher unemployment rate in Canada relative to the U.S.before the 2008-2009 recession is

A) less generous unemployment benefits in Canada.
B) more generous unemployment benefits in Canada.
C) U.S. government policy was more effective in managing business cycles.
D) a larger population in the U.S.
E) more job training programs in Canada.