Tracy took a road trip out west where she had a chance to visit both the north and south rims of the Grand Canyon. She observed more wildlife and a greater variety of views from the south rim, but enjoyed a less crowded more peaceful experience at the north rim. She was able to hike several trails at both locations and found the staff to be helpful. What would be the best way for Tracy to categorize her observations?

ASimilarities = variety of views, crowds, peaceful

Differences = amount of wildlife, hiking trails, staff

BSimilarities = helpful staff, ability to hike

Differences = variety of views, crowds, peacefulness, wildlife sightings

CSimilarities = helpful staff, views, amount of wildlife

Differences = difficulty levels of hiking trails, crowds, peacefulness

DSimilarities = Both crowded, excellent views, ability to hike

Differences = peacefulness, staff availability, amount of wildlife