Answer:
A strong navy, used in concert with allied nations and backed up by a vigorous economy, is a potent deterrent to conflict and enables diplomacy. It convinces adversaries that war is either unwinnable or too costly to wage
Explanation:
The correct answer is:
a. A newspaper reporter who covered the Reagan presidency.
I believe a newspaper would be the most reliable source of information, because newspaper reporters tend to be subjected to higher standard of journalism. Even though it's true that bias would still exist depending on the journalist who wrote the coverages, they are the most trusted sources compared to other people in the options above.
Assuming that you want this simplified...
Use the FOIL method and combine like terms:
And your final answer is: 
<span>A sudden influx of wealth from military action would throw off the balance of wealth in that, while other non-military people may have previously been wealthy, they would now no longer be wealthier than the soldiers who served them. With too much wealth, the value of money would also go down, causing the economy to actually decline. Also, with such an influx of wealth to the already wealthy, a larger rift would be created between the wealthy and the poor. That this wealth was accrued through military action would encourage more military action and more violence.</span>
