The Level of Lethality/toxicity Refers to

The level of lethality/toxicity refers to

A) the extent to which those coming in contact with the agent are likely to die.
B) how well the terrorists can control the area over which the agent is spread (and not get caught in it themselves) .
C) whether or not the agent is specific to a particular animal, plant, or human species and the extent, if any, to which the agent can jump between species.
D) how quickly victims will come in contact with and react to the agent.