The Figure Given Below Shows the Demand [D and D']

The figure given below shows the demand [D and D'] and supply [S and S'] curves of shares of stock.Figure 17.2

-Lobbying efforts by individuals and firms:

A) increases productive efficiency in the economy.
B) merely transfer income and wealth from one individual or group to another.
C) enables the firms to experience economies of scale.
D) improves the overall standard of living in the economy.
E) helps the economy to produce the efficient level of output.