[em09]A change in which of the following should not affect the demand for hot coffee?

            A)  The price of coffee.                                  D)   The weather.

            B)   The price of tea.                                        E)   All the above affect the demand for coffee.

            C)   Consumer incomes.

我选E，答案是A，可是A怎么会对hot coffee demand没影响呢？！

谢谢大家~~