What can we learn from this hi storical event? How can we ensure that the US does better at living up to its democratic ideals, especially i n times of crisis?

Explanation:

Due to the attack from Japan, Americans were easily swayed to be xenophobic towards Japanese Americans and even other Asian Americans. Examples such as Executive Order 9066, Korematsu v United States and Japanese Internment show how Japanese Americans were unfairly treated after the attack.

From events such as these we learn America is not the perfect country our government tries to make us seem like. We learn that racial prejudice such as these are not acceptable in any instance- war hysteria or not. 9/11 is another similar example of American xenophobia after an attack.

We the people must push our government officials as well as our representatives to live up to its democratic ideals. By advocating, voting, calling your representatives, you may help promote these ideals. Educating ourselves and educating others is the most helpful thing we can do.

option d is correct. corroborated sources of historical evidence   is necessary to validate a claim about an event in history.

historians tend to use written sources, but audio and visual materials as well as artifacts are important objects that supply information to modern historians.

historical sources are usually divided into two categories: primary and secondary sources. depending on the historian's intent, some sources shift their designation. determining what type of sources toimplement, and the level of credibility and reliability of those sources, is a significant step in critical thinking for the historian.

explanation:

four sitting presidents have been assassinated while in office but the first was abraham lincoln,