Which scenarios can the following graph describe? a. your distance from home as you travel to drop off something at the post office and then travel to your neighbor's house before returning home b. the speed of a hiker who climbs up and then down a mountain c. the total distance traveled as you drop off something at the post office and then travel to your neighbor's house before going back home d. the height of an airplane from the time it takes off to its maximum elevation is the answer b or c?