Answer: C. Spurred a period of economic growth and prosperity
Step-by-step explanation:
The businesses were happy in the 1920s and this made them produce more and drive the economy forward thereby leading to prosperity unlike anything ever seen before.
They were happy because the government was pro-business which meant that they interfered little in the affairs of businesses such that businesses were free to chase profits how they liked. Higher tariffs on foreign goods meant that domestic producers could sell at higher prices and make a profit.