Answer: C. Trade regulation
Explanation: Adam Smith is considered the father of a modern liberal economy. The modern economy pulls its roots from the "Wealth of Nation," the capital work of this economic genius. According to Smith, economic relations should be free from any government oversight, and give full freedom to entrepreneurs. In such conditions of free market, the market itself is governed by the law of capital, i.e. invisible hand. In doing so, the division of labor should be done as the key to the success of the market economy, the epochs of a narrow specialization of jobs, and thus productivity increases and the economic systems themselves are far more efficient.
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Answer: The Senate found him not guilty of the charges against him.
Explanation: Clinton's second term was particularly marked by the extensive media coverage of the sexual scandals in which he was involved, mainly linking him to White House Scholar Monica Lewinsky, a graduate in Psychology who had intimate relations with the president. On August 6, 1998, she became the first witness to refute the affidavit of a president of the United States, in which he denied having had sexual relations with her. The prosecutor accused the president of eleven serious crimes worthy of impeachment, for perjury, abuse of power and obstruction of the work of justice. On October 8, the Congress voted 258 to 176 votes in favor of the impeachment process. After a few months, Clinton admitted to having maintained an "improper physical behavior", although he denied having committed perjury.
On February 12, 1999, the Senate declared Clinton "not guilty" of the crime of perjury by 55 to 45 votes in favor, and of the crime of obstruction of justice with a tie to 50. For culpability, a majority of two thirds was required.