I think that the best answer for this is A. Because he knew that the coldest snaps never froze these springs, and he knew likewise their danger. So in the end he knew they were traps. I hope this helps ;) you are welcome.
In The Metamorphosis, Kafka makes it evident that Gregor endures a hellish existence as a traveling salesman. Being the sole breadwinner of the family also takes its toll. He yearns to be free of his job and his family obligations. It seems as though his wish has been granted when he is transformed into an insect. However, Gregor cannot bask in the joy of his freedom because his physical condition causes the loss of his job, and he is forced to live within the confines of his room. Gregor’s condition is also a symbol of his alienation from society, which burdens him with too many expectations and unrealistic goals.
