Conjunction because it’s telling you when or since when
The author's purpose who is Adam Alter is to attempt to get teachers to stop using red pens to grade their students work. I believe he wants this is because the color red shows that the students have been assessed harshly when their work is covered in red ink. To me this isn't really important as it most likely only affects people in elementary school as they are more likely to express their feelings then people in secondary school. When speaking to my siblings on the topic to them the color red when grading work influences the mind that they made to many errors which resulted in their bad performances, as this may not make the most sense if you think about it in some religions the color red represents death and evil.
-- Sorry if this isnt a lot I attempted to finish this as best and fast as I could
I think the answer is C.
Hoped this helped :D
Also tell me if I'm wrong.
Answer:
Find the main idea. A useful summary distills the source material down to its most important point to inform the reader. Pick the major point you want to communicate to the reader, and use your limited sentences wisely to convey it. Take down a few notes to help outline your thoughts in an organized manner.
Keep it brief. A summary is not a rewrite—it’s a short summation of the original piece. A summary paragraph is usually around five to eight sentences. Keep it short and to the point. Eliminate redundancies or repetitive text to keep your paragraph clear and concise.
Write without judgment. If you are summarizing an original text or piece of media, you are gathering and condensing its most relevant information, not writing a review. Write your summary in your own words, and avoid adding your opinion.
Make sure it flows. Transitions are incredibly helpful when it comes to building momentum in your writing. Connect your sentences with transition words, making sure they flow together and convey your summary clearly.