0 93 110 190 210 Quantity The income level at demand curve D is $1,000. Suppose an increase in consumers income level to $2000 shift the demand curve to the right ( at demand curve D') the income elasticity of demand for pens at a $2 is Select one: Q a. 0.9375 0 b. 1.0714 0 c. O.9375 o d. 1.0714