3,Nixon was impeached, so was Johnson, Clinton was tried in senate<span />
The hardship that they faced was death cancer
Arab nations of the Organization of Petroleum Exporting Countries (OPEC) imposed an embargo against the United States and its allies as a response to the U.S. decision to provide military support to the Israeli in order to give the Israel a jump start in the post-war peace negotiations.
John Jay's Treaty, 1794–95. On November 19, 1794 representatives of the United States and Great Britain signed Jay's Treaty, which sought to settle outstanding issues between the two countries that had been left unresolved since American independence.
Your answer should be C. The “Rule of Four”. Hope this helps! =^-^=