Although primates lack human-like vocal cords, they are still able to communicate. For example, gorillas have been taught to use sign language. When in contact with humans, gorillas occassionally initiate a sign language session. This is encouraging to researchers who want to provide evidence of primate intelligance. During a peer review, Suki noticed some writing convention errors. Which editing check list box did Suki check? A. spelling B. punctuation C. capitalization D. grammar