The correct answer is - D) It has contributed to a negative balance of trade.
The decreasing demand for US exports has had a negative effect on the trade deficit. This kind of situation results in an ever growing imbalance of trade, as the home made products are becoming less demanded, while the importing of goods and products is increasing, constantly making the trade deficit bigger.
That can eventually lead to an economic collapse, economic crisis similar to the Great Depression, as the country will not be able to work in that way forever. The GDP, both the nominal and the per capita, will suffer because of that, which will cause lot of unrest and opposition from the general public.
According to social exchange theory, helping behavior is guided by reciprocity norms.
Social exchange principle is a sociological and mental principle that studies the social conduct in the interaction of two parties that enforce a price-advantage analysis to determine dangers and advantages.
A easy example of social exchange idea can be seen within the interaction of asking a person out on a date. If the person says yes, you have gained a reward and are in all likelihood to copy the interplay through asking that man or woman out once more, or via asking a person else out.
Learn more about social exchange theory here:brainly.com/question/5660582
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This is an example of<span> "appetite".</span>
<span>Appetite refers to the desire or want to eat food, some of the time because of hunger. Engaging nourishments can empower craving notwithstanding when hunger is missing, in spite of the fact that craving can be significantly lessened by satiety. Appetite exists in all higher living things, and serves to manage sufficient vitality admission to keep up metabolic requirements. </span>
