What might make one person’s story more believable than another person’s?

The arguments used and, if possible, some evidence the person found and that might help.

Explanation:

When you ally strong arguments with the evidence you can support your story and make it more believable because everyone will look at you and your story and see that you brought something physical, and attest that it's true. Sometimes, just the physical evidence or anything related to the story that can be seen and touch is enough. If the evidence is impossible, so create strong arguments supported by research and experience.  

shang dynasty

western zhou (ca. 1046-771 bce)

eastern zhou (ca. 771-256 bce)

the answer is 1.. i think