From the Lands End Observatory I viewed the Grand Mesa with new eyes. No longer was it mere information on the pages of a geography book. At that moment, the massive mesa captured us as surely as it must have amazed the pioneers who first discovered it. I had to think that their first experience among the mesa's vast green forests, cool lakes, and teeming wildlife was as awe-inspiring as mine. The student's rough draft of her reflective essay on the Grand Mesa contains a pronoun error. Which pronoun does the student need to change to correct the error? A. Change it to their. B. Change us to me. C. Change their to its. D. Change mine to ours.