The environmental change that is caused by the increasing levels of solar energy will cause the melting of the ice at the poles and hence increase the sea level, whereas, the movement of tectonic plates under the surface of Earth causes the drifting of the continents. We have surely come across the formation of new islands, mountains and vanishing of existing land masses due to the movement of tectonic plates in the past.
Hence the continent drifting is caused by the movement of tectonic plates. This is definitely a long-term change since the time period taken for such geological changes is large.
Hence the option B applies to our answer
