Delaware and Maryland both were free states.
Answer:
Explanation: The experience of World War I had a major impact on US domestic politics, culture, and society. Women achieved the right to vote, while other groups of American citizens were subject to systematic repression.
I think a. the ban on slavery was blamed for slow economic growth , and slavery became legal in 1750.
The correct answer to this open question is the following.
Although the question is incomplete because it does not provide a specific reference about the author of the letter or any other reference, we can comment on the following.
A primary source is the piece of information that was written by a character or an individual that lived in the moment of the event, was part of the event, or witnessed the event. This individual could have written a letter, or a document -including a book. Or he/she took a photograph. Or was part of an interview. The secondary source includes information from a third person who was not part of the time or event but has found information through other resources. It is the case of an encyclopedia or researchers/historian books.