"... the chief business of the American people is business." he once said.
Coolidge followed a laissez-faire economic policy, whereby the government doesn't interfere in the national economy unless absolutely necessary, and even then its actions should be limited to gentle nudges to get the economy back on track rather than large scale intervention.
So, Coolidge's attitude toward business was 'if it's not broken, don't fix it' - leave business alone to prosper.
Answer:
Because they were not ready for the war
Answer: the best choice in my opinion would be b
The war in Afghanistan was a war that initially confronted the Islamic Emirate of Afghanistan, ruled by the Taliban, and, once it was overthrown, its insurgency.