Vulunerability can be defined as :?

a>physical features or operational attributes that render an entity open to exploitation or susceptible to a given hazard. B) a natural or man made occurrence individual entity or action that has or indicates the potential to harm life . information operations the operations , the enviroment and or property. C)the impact or effect of an event . incident or occurrence. D)The potential for an unwanted outcome resulting from an incident event or occurrence. so which one is the right answer.A,B,C or D