Shawna Wins the Lottery and Her Income Increases by 60

Multiple Choice

Shawna wins the lottery and her income increases by 60 percent.She used to buy 10 pints of cottage cheese per month and now she buys 12 pints.Her income elasticity of demand for cottage cheese is ________,making it a(n) ________ good.

A) 3; luxury
B) 3.59; normal
C) 0.33; necessity
D) 0.28; inferior
E) -0.33; inferior