It was B. border dispute with Mexico
I'm thinking A because Saratoga is in the south. Hope this helps.
Answer/Explanation:
The league failed over the Japanese invasion of Manchuria because America which was not a member and would not support economic sanctions against Japan.Members were unwilling to impose economic sanctions as the depression was already damaging world trade.
An atomic bomb was dropped on Hiroshima.
The United States should let Texas remain an independent country and try to establish good relations with Texas.