Answer: I believe the correct answer would be A.
Cryosurgery. You automatically know this because 'cryo' means ice or something cold, thus you can assume that it is that
Elapsed time
Time Graphs. Set the Type of graph menu to position vs. time and the Choose a graph menu to position graph 1. This means that the vertical axis represents the position, or location, of the caterpillar along the ground, while the horizontal axis represents the elapsed time.