Does evacuation have to involve some risks, if it is properly planned?
A: No, not unless the evacuation route itself is inherently dangerous, such as down an icy ladder.
B: Yes, in fact most evacuations kill and injure more people than the incident would have without any evacuation.
C: No, evacuation almost never involves any risk, even when thrown together hastily.
D: Yes, evacuation involves some significant risks, even if properly planned.