Final Answer:
A social contract is an implicit agreement among individuals in a society to cooperate for mutual benefit, typically by sacrificing some individual freedoms for the greater good.
Moral right refers to a justified claim or entitlement based on ethical principles, distinguishing between actions that are considered morally acceptable or unacceptable.
The biggest challenge posed by "egoism" is the potential disregard for the well-being of others in favor of self-interest, which can undermine social harmony and cooperation.
Step-by-step explanation:
A social contract is a concept rooted in political philosophy. It involves individuals voluntarily giving up certain freedoms to form a society where they abide by common rules for mutual benefit. This can be linked to the question by paraphrasing: A social contract is an agreement among individuals in a society, involving the sacrifice of some individual freedoms for mutual benefit.
A moral right is a justified claim or entitlement based on ethical principles. In the context of the question, it can be rephrased as: Moral right refers to a legitimate claim or entitlement grounded in ethical principles, guiding actions deemed morally acceptable.
Egoism poses a significant challenge as it emphasizes self-interest over the well-being of others, potentially leading to conflicts and societal discord. In line with the question, it can be clarified as: The major challenge posed by "egoism" is the risk of prioritizing individual self-interest at the expense of collective well-being, undermining social cohesion.