As juveniles, all white-necked jacobin hummingbirds display vibrantly blue head plumage; when they enter adulthood, males retain these blue feathers and most females molt to a drab green hue. However, 28% of adult female jacobins remain identical in coloration to juveniles and adult males. Based on field observations in Panama, a team of researchers reports that while adult males show a clear preference in mate selection for adult females with drab green feathers, they also engage in more antagonistic behavior toward those adult females than toward blue-feathered adult females when competing for resources. Therefore, the team hypothesizes that __________
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hardWhich choice most logically completes the text?
A
coloration prevents green-feathered adult female jacobins from distinguishing between adult males and blue-feathered adult females.
B
the percentage of blue-feathered females will increase until fewer than half of adult female jacobins are green-feathered.
C
the occurrence of blue head plumage in adult female jacobins is driven by one or more factors not associated with mate attraction.
D
adult male jacobins do not act antagonistically toward juvenile jacobins with blue head plumage when competing for resources.