The gross margin amounts for Blue Co. were $40,000, $44,000, and $50,000, respectively, for the years 2010 through 2012. If 2010 is the base year for a trend analysis, the appropriate percentages for 2011 and 2012 are:
A. 22% and 25%.
B. 220% and 250%.
C. 10% and 25%.
D. 110% and 125%.