How Do Altruistic Behaviours Arise Through Natural Selection

Multiple Choice

How do altruistic behaviours arise through natural selection?

A) Altruistic behaviours lower stress in populations, which increases the survivability of all the members of the population.
B) The altruist is appreciated by other members of the population because its survivability has been enhanced by virtue of its risky behaviour.
C) Animals that perform altruistic acts are allowed by their population to breed more, thereby passing on their behaviour genes to future generations.
D) By his or her actions, the altruist increases the likelihood that some of its genes will be passed on to the next generation.