Answer:
Sexual Selection
Step-by-step explanation:
Only the male peacocks have adapted to grow such a beautiful, eye-catching tail. Such elaborate colors at their back gives them an advantage during mating season (or sexual selection) because females are more likely to choose those males.
More females are willing to mate with the male, so the male can ensure that he helps produce more offspring. An increased number of offspring will then have a better chance of survival.
Hope this helps!