"The Civil War encouraged industrial growth by challenging industries to make products more quickly and efficiently than they had been made before."
Assuming that this is referring to the same list of options that was posted before with this question, the best response would be "combative" since there were many battles.
The correct answer is an opportunity cost.
<em>The sacrifice involved in making one decision over another is called an opportunity cost.
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When talking about an opportunity cost, it is referred to as the benfits that exist when making a decision. It could be in business or a personal decision. When one individual makes a decision, there are other options left that can have benefits. The sacrifice involved in making one decision over another is called an opportunity cost. That is why is recommended to make a <u>cost-benefit analysis</u> to contemplate all the benefits.
The Huns are the invaders who came from Asia.
