The Work-in-Process Inventory of the Rapid Fabricating Corp. was $3,000 higher on December 31, 2010 than it was on January 1, 2010. This implies that in 2010

		cost of goods manufactured was higher than cost of goods sold.
		cost of goods manufactured was less than total manufacturing costs.
		manufacturing costs were higher than cost of goods sold.
		cost of goods manufactured was less than cost of goods sold.