Why would economic growth be important to maintaining national strength?
a. economic growth has nothing to do with national strength.
b. paying for military always requires massive amounts of money.
c. economic growth brings nations closer together.
d. economic growth creates the wealth that pays for defense and future investments.

D. Economic growth creates the wealth that pays for defense and future investments.

Explanation:

Economic growth is important for the development of all sectors of a nation, especially those sectors that demand high amounts of public investment, such as the national strength.In crisis situations, the government needs to cut spending and state defense sectors such as the military are often affected. Instead, as the nation thrives economically, more investment can be made for national defense through security forces. These investments consist of new technologies, equipment, supplies, and spending on training forces and all that is necessary for national security to be guaranteed.

107x106 is the answer