I'm pretty sure A is the secondary source. All of the others come directly from the source/person, but an interview is getting someone else's view.
Answer:
By using the phrase "We the people", the writers emphasized that it was a government by the people and for the people. They also established the importance of standing together as one nation.
Explanation:
Your answer is Delaware, Pennsylvania, New Jersey, Georgia, Connecticut, Massachusetts Bay, Maryland, South Carolina, New Hampshire, Virginia, New York, North Carolina, and Rhode Island and Providence Plantations. I hope I helped :)
Under Aleksandr Vasilevsky, the Soviet Union invaded Manchukuo.