The turning point in Napoleon's empire was his disastrous 1812 invasion of O Spain. O Italy O England O Austria. O Russia. . NEED ANSWER ASAP

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 !