Which of these was not a contributing factor to the start of world war I?

Who proposed the corwin amendment in early march of 1861

23. how does specialization among nations encourage interdependence? nations work together to share labor and resources to produce vital goods. nations sign treaties prohibiting taxes on imports. nations produce specific goods and then trade to obtain things they need. nations that are more developed agree to fund development in nations with limited industry.

What was a immediate cause of the panic of 1837