During the 1950’s and 1960’s which of the following is true regarding the u s economy? a. average annual incomes decreased. b. average annual incomes remained the same. c. the gross national product decreased. d. the gross national product increased.

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 !