I believe the answer would be B
More products available at lower prices, advertising, and urbanization
No there is not only one way
Coolidge major goals as president was to cut taxes, reduce government spending, and to keep America from any foreign entanglements.
I'm not really sure if you need a broad or detailed definition of the policy, but I'm assuming you want a broad explanation.
The US Policy of Containment was a policy put forth during the Cold War to limit the influence of communism around the globe by attempting to prevent the spread of communism from Russia to other countries around the world. Hope that helps :)