Try to answer asap, will give 10 points

which piece of evidence did alfred wegener's original theory of continental drift have access to?

a: seafloor spreading at mid-ocean ridges
b: reversing paleomagnetism in rocks on the ocean floor
c: a seafloor that was geologically active with earthquakes, volcanoes, and mountain chains
or d: evidence of ancient tropical swamps in cold regions of north america

make sure your answer is accurate.