...after each short stop we kept going, twisting always higher along the ridge between the cornices and the precipices. And at least we came to what might be the last big obstacle below the top. This was a cliff of rock rising straight up out of the ridge and blocking it off, and we had already known about it from aerial photographs and from seeing it through binoculars...
What is the author's purpose in this excerpt?
Question 8 options:
to warn readers about the dangers of undertaking that kind of climb
to provide information about the features of the last obstacle
to convey a sense of awe about the beauty of the surroundings
to give an opinion about whether the summit could be reached
