What ability to repel territory intruders is increased

A new dominant mutation occurs in a population of red-winged blackbirds that triples the size of the red shoulder patch in males. Individuals expressing the new mutation are far more conspicuous to predators and this causes their survival to be reduced by 50%. But their ability to repel territory intruders is increased causing fecundity to increase by 10%. Assuming that red-winged blackbirds have an annual life cycle modeled in class, the new mutation: Choose one answer. A. is favored by natural selection B. is disfavored by natural selection C. influences intrasexual selection D. influences intersexual selection E. both answers A & C F. both answers B & C are correct.

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