C. The best plans often come to nothing
It is called an adverb. I hope this helps. :)
Answer:
The sting that followed upon the striking of his fingers against his leg ceased so quickly that he was startled
Explanation:
The sentence in the excerpt that demonstrates a blunt portrayal of natural life is The sting that followed upon the striking of his fingers against his leg ceased so quickly that he was startled.
This shows that nature is indifferent to the suffering of humans. Nature tries to numb the man's fingers while he was about having a meal and despite the man's best efforts at gaining sensation to his fingers by striking his finger on his legs, it was useless because nature was unrelenting and indifferent to his suffering.
