Refer to the Following Goods X and Y Are:
A)normal
B)inferior
C)independent
D)substitutes
E)complements

Multiple Choice

Refer to the following: $$\begin{array} { l } P _ { X } = 666 - 0.5 Q _ { X } - 2 Q _ { Y } \\P _ { Y } = 484.5 - 1.5 Q _ { Y } - 0.25 Q _ { X } \\M C _ { X } = 20 + 2 Q _ { X } \\M C _ { Y } = 4 + Q _ { Y }\end{array}$$ Goods X and Y are:

A) normal
B) inferior
C) independent
D) substitutes
E) complements