The subject of a source can best be described as the? a. main topic or area of concern.
b. most important idea in the text.
c. tendency to view something in a certain way.
d. way the source wants people to feel or think.

The correct answer is A) main topic or area of concern.

The subject of a source can best be described as the main topic or area of concern.

When doing research it is very important that you understand the main topic that has to be investigated or the area of concern that must be addressed by the research. Otherwise, the research can be wrong or biased. So you have to be careful of the subject of a source because it defines the most important part of the content. From them, will be able to follow the research and get important data, references, and results.

the american rail road was the most influential and useful transportation system developed in the 1800's with steam locomotives and in the very late 1800's and early 1900's diesel electric locomotives being used to transport goods and people around the newly expanded united states!

each played a major role in ending the cold war.