Select the correct text in the passage.
Which two key details should a writer include in a summary of the key idea that Shackleton led the expedition with care and determination?

Worsley, who had hung up his trousers and socks on a boat, found them iced-up and stiff; and it was quite a painful process for him to dress quickly
that morning. I was anxious, now that we had started, that we should make every effort to extricate ourselves, and this temporary check so early was
rather annoying. So that afternoon Wild and I ski-ed out to the crack and found that it had closed up again. We marked out the track with small flags as
we returned. Each day, after all hands had turned in, Wild and I would go ahead for two miles or so to reconnoitre the next day's route, marking it with
pieces of wood, tins, and small flags....