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.
It was "b. Phyllis Wheatley" who was an <span>African American slave whose poetry impressed George Washington," since Washington held a (relatively) enlightened view on African Americans in terms of the arts. </span>