What will repeated word or phrase usually indicate in a primary source?

The correct answer to this open question is the following.

Although you did not include any reference or options, we can say that the phrase that could indicate you are working with a primary source is the one that exactly transcribes what the author says. This makes the source as a valid one, using proper citation.

Let's have in mind that a primary source is information recorded by people who lived in the time of the event and wrote a testimony, a letter, took photographs or videos, depending on the epoch. It also could be news or interviews with characters that were part of those events. That is why, you have to quote the source as it delivered the information, using proper citations and giving the right credit to the sources.

biological/genetic factors means they were born or predisposed to have something. nothing can really change it, and you can't really do much to "fix" it. it isn't something learned

these are the biological factors:

adrian is relatively tall and he is on the basketball team

(adrian can't ever stop being tall or force himself to be tall. likely one or both of his parents are tall as well and they passed on the tall gene. he probably does basketball because he is tall)

the rest are environmental/cultural factors. these are things that are taught to us. for example, cynthia wasn't born saving pocket money, her family most likely taught her this (environmental factor)

hope this !

the answer should be a. the sui empire, the tang empire extended from korea in the west to manchuria in the east.