Which of these statements is a fundamental part of keynesian economics?
a. the federal government should have a balanced budget every year to protect economic growth.
b. the government should reduce taxes to promote economic growth by increasing aggregate supply.
c. the government can use deficit spending to increase aggregate demand and pull the economy out of recession.
d. the economy will only reach equilibrium and prosperity through the self-regulation of the free market.

Option c. The government can use deficit spending to increase aggregate demand and pull the economy out of recession.

Explanation:

The Keynesian economics is an economic theory that relates total spending in the economy and its effects on output and inflation. The Keynesian are of a thought that consumer demand is the primary driving force in the economy. As a result, the theory supports the expansionary fiscal policy.  

think its the third option

what is the speed of a softball that travels 20m in 2secs

speed = 20/2 = 10 m/s