In a population of birds brightly colored males, and very dull, males survive best which type of selection is this and what is most likely true about the proportion of males of intermediate coloring

A disruptive males of intermediate coloring made a small part of the population
B directional meals of intermediate coloring, make up the greatest part of the population
C stabilizing males of intermediate coloring, make up the greatest part of the population
D directional males of intermediate coloring, make up a small part of the population

C. Stabilizing males of intermediate coloring make up the greatest part of the population.

This is an example of stabilizing selection, where individuals with traits at both extremes of the spectrum are selected against, while those with intermediate traits are favored. This results in a population where individuals with intermediate traits make up the greatest part of the population.