A. because Shackleton brought all 27 of his crew members back alive
Even though Shackleton was not able to accomplish his primary goal, he was able to, out of all odds, bring all of his members back alive. The epic adventure started after the Expedition's ship, "Endurance" was crushed, and they had to return to the nearest land for help (approximately 700 miles away i believe), with only 3 life-boats, limited resources, and little time
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