Do you think mountains are nature at its best? Give your answer referring to the context of the lesson the summit within​

The obstacles, in climbing a mountain are physical. A climb to a summit means endurance, persistence and will power. ... Mountain are nature at its best

yaa we can say its up to both worst abd best

sry for wrong answer

b is the answer.   i sat on the lumpy sofa, totally exhausted, with a bad taste in my mouth, wondering what i should do next.