A population of birds has three beak variations, a large beak (suitable for eating seeds), long beaks (suitable for catching small fish) and short but pointy beaks (suitable for eating insects). These birds live on an island and a tsunami hits the islands where only the long beaks live. The tsunami kills all the long beak birds.
This scenario is:
A. can not be determined based on the information given
B. not an example of natural selection
C. an example of natural selection