4. before the present theory of plate tectonics, scientists used the hypothesis of continental drift to propose that earth's continents are in motion. which of the following were initially used to support the hypothesis of continental drift?

i. the matching shapes of continent edges
ii. similar fossils on different continents
iii. matching rock types on different continents
iv. evidence in the rock record for climate change
ii and iii only
ii, iii, and iv only
i, ii, iii, and iv
i and iv only