Answer:
The correct answer is A.
Step-by-step explanation:
The Imperial Trans-Antarctic Expedition is considered to be the last major expedition of the Heroic Age of Antarctic Exploration. The expedition was envisaged by Sir Ernest Shackleton and was an attempt to make the first land crossing of the Antarctic continent.
Even though the expedition failed to achieve its primary goal, it became a milestone in expedition history because, despite all the hardships they had to endure for months, all of the crew members survived returned to their homelands.