I need help with my HW

I need an explanation for this English question to help me study.

Perusall Critiques: After the Writing Assignment: Essay #2 drafts have been uploaded to Blackboard, I will move those drafts to a Perusall Group folder under “Library.” It used to be under “Documents,” but Perusall decided to change names midway through this course! (This is all accessible via Blackboard), and you will be responsible for critiquing three essays, including at least two specific positive comments and two specific suggestions for improvements. Each post counts as ONE comment.

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