Jim starts walking from a bus stop. He walks north for 10 km. Next, he walks east for 5 km. He then walks south for 10 km. Next, he walks west for 5 km and arrives back at the bus stop. Which statement correctly represents Jim’s journey?
A. He covered a distance of 15 km and had a displacement of 15 km.
B. He covered a distance of 20 km and had a displacement of 10 km.
C. He covered a distance of 30 km and had a displacement of 0 km.
D. He covered a distance of 10 km and had a displacement of 20 km.