Alfred Wegener Theorized That Earth's Continents Were Once Joined Together

Multiple Choice

Alfred Wegener theorized that Earth's continents were once joined together and later split, and drifted apart because of which of the following pieces of evidence?

A) Fossil evidence on Gondwanaland
B) Glacial evidence on Gondwanaland
C) Sandstone structures of ancient sand dunes found at 30° north and south latitudes
D) Coral reef fossils in the polar regions