Which of the Following Could Be a Vicariance Event for Species

Multiple Choice

Which of the following could be a vicariance event for species in that habitat?

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 rate,causing an increase in autopolypolidy.
D) All of the above could be vicariance events for species in that habitat.