Big Deer Industries gathered the following year-end data (in thousands) for 2010 and 2009:

	2010	2009
Current Assets	$450	$500
Long-Term Assets	810	620
Current Liabilities	310	420
Long-Term Liabilities	500	610
Owners' Equity	500	300
Net Sales	900	810
Gross Margin	410	400
Net Income	180	135

The gross margin percentage for 2010 was:

A) 33.0%

B) 40.1%

C) 42.2%

D) 45.6%