Answer:
E. They compare it to other historical sources.
Explanation:
In that case historians are usually trying to compare them with other historical sources.
They are usually trying to figure out are there some persons of figures that have been mentioned, which can lead them to conclusion about when something happened, during which period, whose reign, etc.
Answer:
They use scientific methods such as radiocarbon dating
They compare it to other historical sources
Explanation:
I just took the test