Question

Which best explains when an in-text citation is necessary?

1.Every time you use a fact or piece of information from a source

2.Only at the end of the paper

3.If you use the same source two or more times in a row

4.Only if you use more than three facts from that source

Answer 1

Number 2 is incorrect, as you do have to sometimes use in-text citations.
Number 3 is incorrect because you do not need to make a citation just because a same source was used two or more times in a row.

With these two eliminated, that leaves 1 and 4.