First Paragraph: Sense of fairness does not come naturally but rather socially accepted norms or rules -------> With sense of fairness human beings rise above their innate raw violence and competition.
Second Paragraph: Sense of fairness is part of human nature just as violence and competition ------> Monkeys and Orangutans perform objections when faced with unfair situations as an act of sense of fairness ------> Monkeys, Orangutans and Humans share evolutionary past.
What the conclusion can be ?
A.)
Sense of fairness evolved before primate species differentiated. No such information given in the passage as differentiation of primate species and whether sense of fairness evolves before or after this differentiation.
B.)It is true that both primates raise strenuous objections but it is not our topic. Our topic or main idea is that showing primates as an example that human beings have innate sense of fairness (natural)
C.)With primate examples it actually lends a slight credibility to the second theory so it fits to be conclusion of the second paragraph. But how ? Veneer theory at the first paragraph has no any kinds of observation or merits, however second theory is supported by objections of primates example and therefore becomes at least in the light of given example credible.
D.)Similar to answer choice C but at the end there is a comparison which makes it the answer choice out of scope. We have no such information that innate sense of fairness comes more naturally to orangutans and monkeys than humans.
E.)So what that most scientists continue to accept veneer theory. It doesn't make the second theory confuted or play a role of conclusion of it.
Ans. (C)
IMO