Which statement best explains why Earth maintains long-term surface activity while Mars and Venus do not?
A
Earth’s magnetosphere preserves stable surface conditions, but Mars and Venus lack magnetic fields and lose atmospheric protection.B
Earth has surface activity because of a stable climate, but Mars and Venus have different atmospheric compositions.C
Mars and Venus have inactive or limited surface movement due to their size, while Earth’s larger mass keeps its plates moving.D
All three planets have cores, but only Earth has water on the surface to drive tectonic processes.