Based on the Findings of Hansen, Which Statement About Marine

Based on the findings of Hansen, which statement about marine gastropods is true?

A) The average geographic range of direct-developing species is larger than that of species with swimming larval stages.
B) The average geographic range of direct-developing species is smaller than that of species with swimming larval stages.
C) According to the fossil record, species with swimming larvae were more prone to extinction than direct-developing species.
D) According to the fossil record, species with swimming larvae had smaller geographic ranges and were therefore less prone to extinction.