According to Wilson what was one of the most significant reasons why world war one became a global conflict involving so many world powers A.the changes in technology That had been applied to military weapons
B. The existence of secret alliances and treaties
C. The failure of the League of Nations

it's B

Explanation:

The existence of secret alliances and treaties

Now go have fun doing homework

He got business leaders to go to the White House and try and convince them to not lay off workers or cut wages.

At the start most just believed that the economy would only be like this for a little bit and then it would go back up.

Increase in taxes

Smoot Hawley Tariff Act, 1929 - raised import taxes - Originally they made it to try and increase American trade but it ended up hurting businesses relying on imports leading to retaliatory taxes on American goods brought internationally into the USA

Hoover helped the creation of the RFC (Reconstruction Finance Corporation) to give loans to businesses etc.

Hope this helps, have a BLESSED and wonderful day, as well as a safe one!