The passage makes which of the following claims? A. A rise in precipitation resulting from human factors has increased the frequency and magnitude of land-sliding. B. Human factors have led to greater changes in land-sliding activity that have cyclical climate fluctuations. C. Decreases in land-sliding activity have historically been accompanied by changes in climate. D. Slope stability is more influenced by seismic activity than it is by human factors E. Changes in land-use patterns in mountain ecosystems are generally correlated with changes in climate.