Quipus<span>, sometimes known as khipus or talking knots, were recording devices historically used in the region of Andean South America. A </span>quipu<span> usually consisted of colored, spun, and plied thread or strings made from cotton or camelid fiber.</span>
Answer:
C
Explanation:
The new Bolshevik government were struggling to run the country as money was running low, people were starving, so they decided to back out of WW1, this made the other European countries see them as weak and not legit. In the conference after WW1 to decide what to do with Germany and the aftermath, Russia wasn't invited because they backed out of the war early.
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.