Why are chemical, biological, and nuclear weapons of special concern to world governments?

Chemical, biological, and nuclear weapons are especially concerning because they can cause mass casualties and widespread harm in a single attack. This makes choice A, “These weapons of mass destruction are capable of killing thousands of people in one attack,” the best answer. The other choices make broader claims about terrorist access and use that are not the central reason they are considered especially dangerous.

AI-written and checked against the verified answer.