The number of unemployed people doubled between 2005 and 2009.
A.Twice as many people were unemployed in 2005 compared to 2009.
B.Twice as many people were unemployed in 2009 than in 2005.
C.There were twice as many unemployed people in 2005 compared to 2009.
D.There were twice as many unemployed people in 2009 as in 2005.