Fact 1: Bottleneck effect occurs when a population suddenly gets much smaller.

Fact 2: Population size is the predictor of extinction probability.

Given the two facts above, answer the question "Bottleneck effect can be a precursor to what?" with the following options: 
- massive damage
 - Climate change
 - Destroy bridges
 - Cambrian explosion
 - ground to shake
 - clams
 - soda
 - extinction


 

        extinction 