The answer to your first question would be C. The answer to your second question is B.
Answer:1) 3. 1973
2) 3. Saigon
Explanation: In 1973, the United States officially pulled their troops out of the war after 18 years of fighting.
North Vietnam in 1975 closed in on Saigon and bombed it, hence "The Fall of Saigon."
The sinking of the U-boat by the Germans, the U-boat had about 100 Americans in it and they were killed.
Answer:
OK so primary and secondary sources are very important and they shape history. The primary source is always better because usually it is like a newspaper or a picture or a book from that time period. Secondary sources are still important they are just not as reliable. An example of one is like someone saying that they saw something happen but they could be lying. Or their perspective might be slightly biased depending on their view.
Explanation:
