单选题 Marko Tskitishvili, an economist, has been studying the drop in the price of the average household computer in the U.S. and wonders if computers should still be considered a luxury good or if it has now become a normal good. He conducts a survey of 500 people and finds the following:

	1998	2005
Avg．Household Income	$41000	$53000
Avg．Computers Purchased per Household	0.42	0.57

Assume that 1998 is the base date. Based on the above data, Tskitishvili would conclude that a computer is a: A. luxury good with income elasticity of 1.01. B. normal good with income elasticity of 0.84. C. luxury good with income elasticity of 1.18.