Answer:
Scarcity as an economic concept "... refers to the basic fact of life that there exists only a finite amount of human and nonhuman resources which the best technical knowledge is capable of using to produce only limited maximum amounts of each economic good ... ."[1] If the conditions of scarcity didn't exist and an "infinite amount of every good could be produced or human wants fully satisfied ... there would be no economic goods, i.e. goods that are relatively scarce...
Based on the given paragraph, the statement that would shift the nation X's PPC is the statement: "Within three months of coming into office, Bertolini passed regulations that made college education available to students from low-income families". This is so because the statement shows a great achievement coming from a female president from an island who accomplished so much within a short period of time. The other statements are just supporting statements of the main spotlight statement. For example, the last statement about the female astronaut is out of context, therefore, we cannot refer this as the main content of the paragraph. <span />
