The correct answer is the Influenza Pandemic.
This Influenza (flu) Pandemic killed between 20 and 100 million people (estimates differ) - more than the war itself!
The source of the Pandemic is still not known, and people suggest such places as the US, China and France.
I Believe The Answer Is C. The Environment
Because he believed it would revise the basic direction of our national labor policy ,injectthe government into private economic affairs on an unprecedented scale, and conflict with important principles of our democratic society