The conference that kept Czechoslovakia independent but places Sudetenland under German control is B. Munich
He believed if he forced the Natives, there would be no 'parntership' between them.
If demand increases and supply remains unchanged, then it leads to higher equilibrium price and higher quantity. If demand decreases and supply remains unchanged, then it leads to lower equilibrium price and lower quantity.
The first choice: The French Navy cut off supplies and a way to escape for the British Army. In addition American and French ground forces well outnumbered British forces.