Number of articles sold by Company A in the year 2009, 2011 and 2013 together is approximately what percent more than the average number of articles sold by Company B in the year 2012, 2013 and 2014?(approx.)

Number of articles sold by Company A in the year 2009, 2011 and 2013 t

1.	Number of articles sold by Company A in the year 2009, 2011 and 2013 together is approximately what percent more than the average number of articles sold by Company B in the year 2012, 2013 and 2014?(approx.)
A.	180
B.	190
C.	198
D.	210
Answer» D. 210