(Last Word) Because There Are So Many Sources of Carbon

Multiple Choice

(Last Word) Because there are so many sources of carbon dioxide, making monitoring difficult and costly, many economists

A) prefer a carbon tax to cap-and-trade for reducing carbon dioxide emissions.
B) prefer cap-and-trade to a carbon tax for reducing carbon dioxide emissions.
C) believe that cap-and-trade and a carbon tax are both costly but should be implemented to reduce carbon dioxide emissions.
D) believe that neither cap-and-trade nor carbon taxes can effectively reduce carbon dioxide emissions.