What region fed all of the other colonies? (13 colonies)

Before world war 1 started, austria-hungry was wary of (spain or serbia) because of border disputes

Part a: which statement identifies the central idea of the text? a: the north was more powerful than the south and was always going to be the victor of the civil war. b: despite the obvious strength of the north, the outcome of the war was unpredictable at the time. c: the united states underestimated the strength of the south, giving it the upper hand. answer !

Answer correct get brainliest and 20 points