Most Native American peoples had not yet developed a form of writing, is the correct answer.
The native American literature is recorded in the form of an oral traditional because they have this tradition of storytelling and passing it on one generation to another. They didn't have and writing records but they have skills in depicting which can be seen in tipis where they decorated with a battle scene, animals, hunting scene.
The Silk road is a rode between ancient Rome and ancient China. Any road that traders took from and to these two places was called the silk road. If you need help writing a paper, here is a college essay on the silk road. This should help: https://www.learner.org/courses/worldhistory/support/reading_9_3.pdf