Part 1 of 2: Create a demand equation for a good. Choose the correct option below:

A) Q=9-0.1p-p_(y)+0.01p_(z)+0.0005Y
B) Q=9-0.1p-p_(y)+0.01p_(z)
C) Q=9-0.1p-p_(y)+0.0005Y
D) Q=9-0.1p-p_(y)

Note: p= current price of the good, P_(y)= price of a related good, Q= quantity demanded, p_(z)= price of a