Which of the Following Could Be a Vicariance Event

Multiple Choice

Which of the following could be a vicariance event?

A) The level of water in a lake recedes, creating two lakes where there used to be one.
B) Some insects get blown in a storm to a new mountain range, where they lay eggs.
C) Radiation near Chernobyl increases mutation rates, causing an increase in autopolyploidy.
D) Global warming allows populations of mosquitoes to survive at higher elevations.