How is the cross-elasticity of demand for good X with respect to good Y measured?
- Athe change in the demand for X divided by the change in the price of Y
- Bthe change in the price of X divided by the change in the demand for Y
- Cthe percentage change in the demand for X divided by the percentage change in the price of Y
- Dthe percentage change in the demand for Y divided by the percentage change in the price of X