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.
Answer:
C. asteroid is large enough to create a gravitational force that is strong enough.
Explanation:
Basically all celestial bodies are subject to Gravity among them, so the rules of gravity apply for the strongest to the smallest, the strongest attract the weakers into their orbit, so an asteriod can have a moon since a moon it´s just a weaker celestial body with a weaker gravity force that is attracted towards another bigger celestial body. An asteriod just would have to find a celestial body with a weaker gravity force and strong enough to endure traveling alongside the asteriod.
Answer:
Answer Below
Explanation:
He was obviously the president which means it was his job to show leadership. Also he created the emancipation proclamation which was a forceful end to slavery in southern areas controlled by the union. He also attacked the south many times and did it smartly. It freedom of African Americans helped them gain more soldiers as well.
