Natural selection might favor altruistic behaviors in closely related individuals because it

increases the frequency of the altruistic individual's genes in the next generation

Explanation:

People who constantly do altruistic behavior tend to be in a really good terms with other individuals. This will make them gain more ally throughout their life time and ensure their survival by receiving help from their allies when they face a problem.

If altruistic genes exist and resided in the individuals, the high survivalist factor make it more likely for the genes to be passed into next generation.

answer; 5% is your answer; ///good luck

b) the bill goes to the president.

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