Use the Following Information to Answer the Next Few Questions

Use the following information to answer the next few questions.
Two populations of the highly ornamented white-crested sparrow species are spatially separated by a mountain range. Males from the two populations exhibit differing elaborate courtship displays. When a female appears, the males from the eastern population approach the female while bobbing their heads and spreading their wings, while the western population approaches a female by hopping and flapping their wings. Individuals from each population reared in isolation exhibited the same courtship displays as those in the wild.
-According to Hamilton's rule

A) natural selection does not favour altruistic behaviour that causes the death of the altruist.
B) natural selection favours altruistic acts when the resulting benefit to the beneficiary, corrected for relatedness, exceeds the cost to the altruist.
C) natural selection is more likely to favour altruistic behaviour that benefits an offspring than altruistic behaviour that benefits a sibling.
D) the effects of kin selection are larger than the effects of direct natural selection on individuals.
E) altruism is always reciprocal.

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