A - Because they are a direct link to the events in history
Primary sources are sources that came from that time of history from the same location, time period, and era. For instance, journals from World War II from a French Military leader. These are direct links to that time in history and are the most accurate sources that are presented.
B is incorrect as even without these sources there are other methods to know about history such as secondary sources.
C is incorrect as primary sources are not the only way - again, secondary sources are a thing.
D is incorrect as secondary sources are reliable and can be trusted, but they just aren't as important and well, direct as primary sources.
Hope this helps!
The answer is letter b governor.
Russia.
The United states had a major role in bringing the war to an end and at the same time championed the start of the trial of most of the perpetrators of the world War. Although most of the top German military elites that had including Hitler himself committed suicide. Russia felt that it was not fair for the United states to have held most of the prisoners since Russia was also a subject of attack during the war.
The Sea of Marmara is a northeastern extension of the Mediterranean Sea. This Sea separates Turkey: northwest is European Turkey; southeast is Asian Turkey. The Bosporus Strait runs through Sea of Marmara to the Black Sea in the north.