Why Did Alexander Du Toit Feel It Was Necessary to Propose

Multiple Choice

Why did Alexander du Toit feel it was necessary to propose a northern landmass he named Laurasia?

A) Pangaea did not account for all known landmasses.
B) The landmass helped resolve climatological inconsistencies.
C) Paleomagnetic studies of the seafloor proved its existence.
D) A large mass of Gondwana had broken off and drifted northward.
E) Recent ocean voyages discovered remnants of its existence.