Which of the following taxes are more easier to collect in industrial countries than in developing countries?

The figure above shows the marginal social cost curve of generating electricity and the marginal private cost curve. The marginal cost paid by the producers and everyone else in society when 200 billion kilowatt hours are produced is

A) 0¢ per kilowatt. B) 10¢ per kilowatt. C) 20¢ per kilowatt. D) 15¢ per kilowatt. E) 5¢ per kilowatt.

Other things remaining the same, if a nation's expected return on real estate rises, the demand to hold money:

a. Falls. b. Rises. c. Does not change.