C.) An article from a scholarly journal entitled "The impacts of testing on students ages 6-9" published in 2019
Explanation:
The reason that this is the correct answer is that the article is from a reliable source and it was written recently ensuring that you get updated information, as well as it is going through the exact information that you need for your research paper. If you were to choose A then it wouldn't really add anything to your research paper and it would just talk about a random teacher teaching experience, this source is neither enhancing nor reliable. If you were to choose B then it would be too outdated to be useful and or informative making the text not reliable and potentially giving you incorrect information. Next, if you were to choose D then it wouldn't be reliable since it isn't from a trustable source (Wikipedia) neither is it talking about information that is necessary for making your text more engaging
For the answer to the question above, before the competition makes sure she knows her content and topic if she finds it hard tell her to write small notes on it to expand and talk about in more detail or research it the night before the debate.
