Reliable sources include so that readers can evaluate a source for themselves

Explanation:

The choices for this question are

A. correlations.

B. causations.

C. biases.

D. citations.

A reliable sources are those which provide a form to double check the information they are presenting, like an argument, a discussion, a well-reasoned theory, which are based on other true investigations. In other words, reliable sources provide citations and bibliography, through which you can check the information they are using to prove something.

Therefore, the right answer here is D. citations.

Additionally, if you observe other options, they don't offer reliability. For example, a source can offer correlation between events, but without citations and proves, that it's just a baseless theory.

the answer would be a i think?

the two things that develop a strong social foundation are: a. separation of church and states e. education received attention separation of church and states separate the illogical  argument that came from religious beliefs to a fact based belief. while education will make us remember the past to avoid the repeat of our mistakes.