Comment on this graph. A. This is a histogram that shows a general decreasing trend from left to right. It would seem that lower-numbered sites tend to have larger numbers of bird species. B. This is not a histogram. The horizontal axis should split the number of counts from each site into bins. The vertical axis should show the number of sites in each bin. C. This is not a histogram. The sites should be reordered so the bars decrease in height from left to right. D. This is not a histogram. The gaps between the bars should be removed to show that the horizontal axis variable is quantitative