Which Body of Evidence is Least Supportive of Plate Tectonics

Question

Which body of evidence is least supportive of plate tectonics theory?  
A) The worldwide fossil record
B) The global distribution of existing species
C) The sea-floor spreading
D) The shape of the continents
E) The size of the oceans

Accepted Answer

The size of the oceans is least supportive of plate tectonics theory because it does not directly provide evidence of the movement and interaction of tectonic plates, unlike the other options which offer more direct evidence of such processes.