Answer:

Mark is a crewperson on a marine-research submarine traveling underneath a large iceberg. An

onboard explosion has damaged the ship, killed and injured several crewmembers. Additionally, it

has collapsed the only access corridor between the upper and lower parts of the ship. The upper

section, where Mark and most of the others are located, does not have enough oxygen remaining

for all of them to survive until Mark has reached the surface. Only one remaining crewmember is

located in the lower section, where there is enough oxygen.

There is an emergency access hatch between the upper and lower sections of the ship. If released by

an emergency switch, it will fall to the deck and allow oxygen to reach the area where Mark and the

others are. However, the hatch will crush the crewmember below, since he was knocked unconscious

and is lying beneath it. Mark and the rest of the crew are almost out of air though, and they will all

die if Mark does not do this.

Should Mark release the hatch and crush the crewmember below to save himself and the other crew

members? Why or why not?

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