Fort Sumter was the location of the first battle of the Civil War. Several southern states had already seceded from the Union, marking the beginning of political conflict, but Fort Sumter was where the military conflict/the Civil War technically began.
The oil crisis was when Iranian Oil no longer was sold in the U.S. and it was a problem because that was where the oil came from and caused a shortage. I'm gonna say the first one?
Its C I believe.
Hope it helps
