If you choose between two summer jobs, the one you choose not to do could be called the "discarded choice" or the "last pick" among many other things.
The best option from the list would be "<span>The guillotine was an effective instrument for instilling fear and conflict," since this is an opinion that needs to be supported with historical evidence. The other options are simply facts (or non-facts). </span>
Let us choose Extra study. Knowing that opportunity cost is related to the opportunities lost by choosing one specific course of events than others. By choosing an extra study and spend hours studying something, my opportunity cost will be the school sports practice hours that could be spent in this time. Another opportunity cost would be the social interaction, in a club, for example, lost because of the extra study decision.
Answer:
Organization of Petroleum Exporting Countries
Explanation:
The Organization of Petroleum Exporting Countries organized an oil embargo against the United States.
Most people know this as the (OPEC).