The answer would probably be the “Freedom Riders”, who challenged segregation on public transportation throughout the South.
<span>Introduction to Checks and Balances in Federal Government
</span>The concept of checking and balancing power
<span>Executive Branch Checks on the Legislative Branch<span>President has the power to veto laws passed by the CongressProposes laws to CongressSubmits the Federal Budget to the House of RepresentativesAppoints federal officials, who carry out and enforce laws</span></span>
The answer would be A since in WW1 there had been a area called "No Mans Land" which no man could cross hardly ever!
2. It actually sealed the deal that foreign countries would not be involved in that war.