The answer for your question is the letter A.
Many industrial cities such as Detroit have a history of dominance of employment sector by industries.These industries paid relatively high wages for low-skilled jobs and gave a sense of security ensured by large unions. But at the same time these safe conditions discouraged workers from starting their own businesses or continuing education.
Hence, Declining basic employment sector in industrial cities have left them with a lack of job opportunities for a poorly qualified workforce pushing many families below the poverty line.
Manifest Destiny. Manifest Destiny was the belief that the United States was destined to extend its territory to the Pacific Ocean. ... Some Americans were opposed to manifest destiny because other nations (Mexico & Great Britain) claimed the land and because they felt an expansive nation would be too large to govern.
The person who has been known up until today as the "father of modern economics" is Adam Smith. A thinker and philosopher from Scotland, born in 1723 and died in 1790, Adam Smith was given this important title because of his ideas and theories on laissez-fair and the tendency of free markets to regulate themselves by way of competition, supply, demand and self-interest. He wrote several books where he proposed his economic ideas, among which we have: The Theory of Moral Sentiments, where he expresses this ideal of a hidden hand, which means the capacity of markets to autoregulate and An Inquiry into the Nature and Causes of the Wealth of Nations. He was also the proponent of the theory of compensating wage differentials, which states that jobs that are riskier pay much better wages to workers because of the risk they represent, versus jobs that offer little to no risk. He is also known as the father of Capitalism.