Fossil remains of Lustrosaurus (an extinct four-legged animal) have been discovered in India and
South Africa. When they were living, all the Lystrosaurus lived together on land, and they could not
swim. However, now there is an ocean between the Lystrosaurus fossils. What could explain how
these fossils got so far apart?

A. India and South Africa are parts of different plates. The plates slowly moved far apart as
soft, solid rock from underneath got added to the edges of the plates over millions of years.

B. India and South Africa are parts of different plates. The plates floated away from each other
across the ocean.

C. India and South Africa are parts of different plates. The plates slowly moved apart as new
plates from underneath got added between them over millions of years.

D. India and South Africa are parts of different plates. The plates were sometimes pushed far
apart by earthquakes, and soft, solid rock from underneath got added to the edges of the
plates.