Altruism is the human concern for the wellbeing of others. Altruism has been shown to be motivated more by social bonding, familiarity and identification of  belongingness to a group. The notion that altruism may be attributed to empathy or guilt has now been rejected. Which one of the following is the CORRECT logical inference based on the information in the above passage?

The correct option is: Humans engage in altruism due to group identification but not empathy

Explanation:
Let us break down the logical connections based strictly on the provided passage:
1. The passage states that altruism is motivated more by "social bonding, familiarity and identification of belongingness to a group." This tells us that group identification is a valid motivation or cause for humans to engage in altruism.
2. The passage explicitly states: "The notion that altruism may be attributed to empathy or guilt has now been rejected." This means that neither empathy nor guilt is considered a cause or motivation for altruism.
3. Combining these points: humans engage in altruism due to group identification (which is a form of belongingness/bonding mentioned in the text), but they do not engage in it due to empathy (since that notion has been rejected). Therefore, the inference "Humans engage in altruism due to group identification but not empathy" logically follows from the passage.