Correct answer choice is :
C) Primary source document
Explanation:
In the study of history as an educational rule, the main supply is an object, document, diary, manuscript, life, recording, or the other provide knowledge that was produced at the time below study. It is an inspired supply of knowledge regarding the subject. Although several primary sources stay in camera hands, others are put in information, libraries, museums, historical societies, and special collections. These may be public or non-public. Some are linked with universities and schools, whereas others are government organizations.
So difference is culture of South America and Mexico and how they alike is that South America is quite on like the Mexico in terms on their history and the Spanish is the real connection of both two and the difference of all of them is their foods, manner and basic habits that both have molds in past years
Answer: B) Alliances between European Nations
Answer:
The Vietnam War had a profound effect on America. The war also drastically decreased Americans' trust in political leaders. In foreign policy, the U.S. suffered from the so-called Vietnam Syndrome: a fear of getting involved in foreign ground wars that might become long, bloody stalemates with no foreseeable end.