The answer would be a references page.
I think the answer is B memorable if you said a long speech im not going to remember it because it was to long. Now if you said a shoert speech then i would remember becasue it is easier because it's shorter
It depends on the era, peasants that lived in areas with little people speaked English, while the others in congress or in other places near the King speaked Latin, so the answer to that would be False.
If you use credible sources, people trust you more because there is true EVIDENCE to support whatever claim there is. That makes it easier to believe and the research more reliable as it comes from facts that have been proven.