What was the nature of the debate over the acquisition of the Philippines?

I was confused by chosing between two first options but then I've realized which should be the right one. The only one option that suits to be the major cause of the post-war recession in the United States is the third: 3. transition from wartime production to peacetime production

Explanation:

a. "how old man winter was driven back” and “ormuzd and arimanes"