The Idea of Continental Drift,as Proposed by Wegener Around 1915,had

The idea of continental drift,as proposed by Wegener around 1915,had one major flaw,which was the:

A) absence of a source for the forces and energy required to move the continents.
B) lack of any evidence that Africa and the Americas had ever been joined.
C) recent discovery of seafloor spreading, which contradicted the theory.
D) measured rate of continental motions, which were far greater than predicted.