Which best describes the way historians consider letters and journals?
a.
primary source documents that are useful in the study of history
b.
reliable sources for the study of history only if from a named source
c.
secondary source documents that are useful in the study of history
d.
unreliable sources for the study of history because they are too subjective

The correct answer is A. Primary source documents that are useful in the study of history.

Explanation

Letters and magazines can be considered primary sources by historians because there are documents in which they can find reliable information wrote by person who lived in a specific time or event that occurred in history, for example, the history of the countries of America has been constructed from Navigation charts or diaries written by the discoverers or conquerors. Also, it is a way to know how the great civilizations were and the life in them thanks to the letters written by the scribes, who were at the service of the emperors to issue messages to another emperor or the population of their kingdoms. So, the correct answer is A. Primary source documents that are useful in the study of history.

the  seven  days  battles  were  a series of seven battles over seven  days from june 25 to july 1, 1862, near richmond, virginia,  during  the american civil war. the  seven  days ended with mcclellan's army in relative safety next to the james river, having suffered almost 16,000 casualtiesduring  the retreat.