Suppose That Because of a Sudden Change in the Environment

Multiple Choice

Suppose that because of a sudden change in the environment, finches with long thin beaks become better at securing food than finches with other types of beaks. Assuming that the characteristics of beaks have a genetic component, we would expect that

A) future environments for these finches will remain about the same.
B) natural selection will favour the long, thin beaked genotype.
C) finches with other beak genotypes will become extinct.
D) the number of finches with long, thin beaks will stay about the same.
E) finches with shorter beaks will find new environments to feed in.