In the market for diamonds, assuming everything else remains unchanged, the equilibrium price of diamonds will decrease if A. there is a shortage of diamonds. B. the price of gold, a complement, decreases. C. the supply of diamonds decreases. D. the price of cubic zirconia’s, a substitute, increases. E. there is a technological improvement in mining equipment.

In the market for diamonds, assuming everything else remains unchanged, the equilibrium price
of diamonds will decrease if
A. there is a shortage of diamonds.
B. the price of gold, a complement, decreases.
C. the supply of diamonds decreases.
D. the price of cubic zirconia’s, a substitute, increases.
E. there is a technological improvement in mining equipment.