I would use a venn diagram
Answer:
What sentence are u referring to?
The correct answers are:
"twenty miles west of Phoenix"
"3:15 p.m. on June 12, 2014"
"spherical metal object"
Explanation:
Factual details refer to true details or information. These types of details provide all the essential details about some news or case.
In our example, we can notice that factual details brig us important information by answering questions like when, where and what.
The other two options cannot be considered as the correct answers because of the suppositions which cannot be classified as part of factual information. (e.g. concerns about aliens / rumors spread).
Between these word choices, I would say tracks...as in traces/tracks one's steps...The other's don't really match the meaning of the word "traces"...hope this helps!