The principle of responsibility to protect.

• A. A state's right to protect its own borders without external intervention.
• B. The international community's obligation to prevent and respond to mass atrocity crimes when a state fails to protect its population.
• C. The obligation to protect only economic interests.
• D. The exclusive right to use force without consent.

Answer: (B)

The principle being tested is that when a state cannot or will not protect its population from mass atrocity crimes, the international community has an obligation to act to prevent and respond. This idea, known as responsibility to protect, shifts some focus onto the global community, not just the government of a state, and sets out a path from prevention and assistance to collective action if necessary, typically with UN involvement.

Why this choice fits best is that it captures the core sequence: prevent atrocities from occurring, respond to them if they do occur, and do so when a state fails to protect its people. It encompasses measures from diplomacy and capacity-building to sanctions or, as a last resort, collective enforcement authorized by the UN Security Council. This framing also clarifies that intervention is not automatic or unilateral; it depends on international legitimacy and the gravity of the crimes.

The other options don’t fit because they describe unrelated ideas. Protecting borders without external intervention focuses on sovereignty and non-interference in a way that doesn’t address mass atrocity protection. Focusing on protecting economic interests centers on economic policies, not crimes against humanity or genocide. Claiming an exclusive right to use force without consent contradicts the conditional, multilateral nature of authorized action under R2P.