Editing and Proofreading: Correct the punctuation errors in the sentence below. Fix any other errors that you find.



Matching students up with a computer has three major affects it isolates them from their peers, distracting them from


learning, and shortens their attention span.


A. affects: peers, distracting


B. affects peers, distracts


C. effects: peers, distracts


D. effects peers, distracting