What Was Wegener's Dramatic Paleoclimatic Evidence Linking All of the Southern

What was Wegener's dramatic paleoclimatic evidence linking all of the southern hemisphere continents between 300 and 220 million years ago?

A) massive reef limestones in Alberta and the Eastern Arctic
B) tropical Carboniferous coal swamps across the Northern Hemisphere, particularly the Eastern U.S. and central Europe, where the fossil trees lacked annual growth rings
C) massive crossbedded red sandstones suggesting former tropical deserts
D) striated and grooved bedrock overlain by Paleozoic tillites in South American and African areas now within 30° of the equator