Studies Show That the Supply Curve for Bananas Has Shifted

Multiple Choice

Studies show that the supply curve for bananas has shifted.All of the following could be possible explanations for the shift,except one.Which is the exception?

A) The price of land for growing bananas has risen.
B) Weather conditions in banana-growing countries have worsened.
C) The price of apples has fallen.
D) The price of bananas has risen.
E) The salaries paid to banana growers has risen.