Which statement best explains Wegener's hypothesis of continental drift?

1.Volcanic activity slowly reshapes the continents throughout Earth's geologic history.

2.The continents shift locations as a result of major catastrophes like meteorite impacts and earthquakes.

3.The continents rapidly change places from one hemisphere to another when Earth's magnetic field reverses.

4.The continents were once part of the same landmass and have moved very slowly to their current positions