The Table Below Shows the Quantities of Automobiles, Margarine, and Coffee

Multiple Choice

The table below shows the quantities of automobiles, margarine, and coffee purchased by Ted at different levels of income.Table 6.2

-If 12 candy bars are demanded at $0.30 each and 4 candy bars are demanded at $0.50 each, what is the elasticity of demand over the price range from $0.30 to $0.50?

A) 2
B) 1.67
C) 0.5
D) 7.5
E) 0.4