Answer: B
Explanation: you can see the difference in the 2nd sentence of passage 1, and the 2nd half of the 1st sentence in passage 2. Kevin describes the treasure as being "stacked neatly... against the far wall" and Peter says it's "lining several walls"
Probably because Peter is the one opening the door and therefore has a better view of all four walls, while Kevin can just see one at the moment.