Which of the Following Is Not an Example of Derived

Which of the following is not an example of derived demand?

A) More people want to plant gardens in the spring; therefore, demand for hoes and shovels increases then.
B) Strong ticket sales for a concert cause the producers to schedule an extra show and demand more ushers.
C) Increased use of robots leads to a decrease in demand for labor.
D) The development of alternative fuels made from corn leads to an increase in demand for corn.
E) Increasing demand for music leads to the construction of more recording studios.