The theory of continental drift suggests that
the continents have moved in the past
the continents are slowly moving now
the continents have moved in the past and are still moving
the continents moved in the past but are not moving now

The correct answer is this one:

the continents have moved in the past and are still moving.

The theory of continental drift says that the continents are moving away slowly, today and in the past. In the past this has caused South America and Africa to drift apart, and it is driving the Americas to the west today.

The correct answer would be C) An ecosystem like the previous one will be re-established.

After a natural disaster such as a hurricane, tornado et cetera damages the natural ecosystem of the place, however, it does not completely destroy the ecosystem.

The population of plants, animals, microorganisms may reduce but all are not eliminated. The survived population grows again and help in the recovery of the ecosystem.

Thus, the ecosystem similar to the previous one will be re-established after some time.