Policy is discussed by the realm, or broad subject matter around which policy centers. Think about economic policy, social policy, and foreign policy. Which of these realms is most important for the national government? Explain why this realm is more important than the other two. Provide evidence to support your explanation.

The telegraph, the transatlantic telegraph cable, and the telephone were important to businesses after 1850 because of a. they created a system for developing new inventions. b. they filled a need that other inventions of the day could not. c. they attracted investors and created the stock market. d. they made picture-taking a popular american pastime.