Answer:
this is not the real answer just conjecture human being did not develop altruism
Answer: The prospective approach.
Explanation: The prospective approach in a study looks out for product or result of the study. In this approach, a research/study is concluded based on the outcome. For example in the development of a drug, the study will involve testing different methods and concluding based on outcomes.
Anna<span> O. was the pseudonym of a patient of Josef Breuer, who published her </span>case<span>study in his book Studies on Hysteria,</span>
