Answer: D) object from the past.
Step-by-step explanation:
An artifact is an object from the past, which was made by humans. A work of art and a tool would be considered as artifacts. Artifacts are important objects because they have certain cultural and historic value. In this case, the author of the text listed arrowheads, poetry and tools as artifacts which can be seen at the visitor center. These are all objects characteristic of an earlier period of time - they originate from different times throughout 10,000 years, and they belonged to the Native Americans.