How is a disaster best defined?

A) Any event or situation that results in multiple casualties and/or deaths
B) A catastrophic and/or destructive event that disrupts normal functioning
C) An industrial accident and unplanned release of nuclear waste
D) An event that results in human casualties that overwhelm available health care resources

A disaster is defined as a catastrophic and/or destructive event that disrupts normal functioning;it may include any anticipated or unexpected event whose effects lead to significant destruction and/or adverse consequences.Any event or situation that results in multiple casualties and/or deaths is called a mass casualty incident (MCI).An industrial accident with unplanned release of nuclear waste is classified as a technological disaster.A medical disaster is a catastrophic event that results in human casualties that overwhelm available health care resources.