The Snake Family Typhlopidae Consists of Small,burrowing Species with Vestigial

Multiple Choice

The snake family Typhlopidae consists of small,burrowing species with vestigial eyes.They are found in Australia,sub-Saharan Africa,India and some adjacent areas,and South America.What is the most likely explanation for this distribution?

A) rafting to the different continents from the point of origin on one of these continents
B) convergent evolution in the different regions
C) origin on Gondwana followed by continental drift and some range expansion
D) all of the above