Geologists discovered fossils of identical spider mites from the same time period but on opposite sides of the ocean from each other. What conclusion is supported by the discovery of these fossils?

A. The mites were extraordinary swimmers.
B. The locations of the fossils were once vast swamp lands.
C. The climate was much cooler during the times the mites lived.
D. the locations of the fossils were once much closer to each other.

D. the locations of the fossils were once much closer to each other.