Answer :
Final answer:
The correct option is (B) The flatwing phenotype is a result of natural selection favoring traits that increase mating success in the local environment. The flatwing phenotype in male crickets on Kauai is due to natural selection favoring traits that enhance mating success in the local environment.
Explanation:
The flatwing phenotype among male crickets on Kauai is BEST explained by natural selection favoring traits that increase mating success in the local environment.
This means that the flatwing phenotype likely provides a mating advantage for male crickets on Kauai, allowing them to reproduce more successfully than those without this phenotype.
Therefore, the appearance of the flatwing phenotype can be attributed to the evolutionary process of natural selection in response to the specific environmental conditions on Kauai.