The Following Figure Shows the Demand (D) and Supply (S)

The following figure shows the demand (D) and supply (S) curves of human organs Figure 18.5

-Which of the following factors might have led to a fall in the price of human organs from P₂ to P₃ in Figure 18.5?

A) A decline in supply of human organs in the black market
B) An increase in demand for human organs
C) Increased supply of alternatives to organs created by technological changes
D) A restriction imposed by the government on trading in human organs
E) Reduced motivation among the donors to donate their organs