The correct answer is C. The cultural beliefs of the characters. Cultural beliefs are always related to a certain period in time and keep changing. This is why we can find out what the historical context is by analyzing what the society values. The other answers are mostly universal.
Gregor’s transformation into new physical form is both disgusting and sympathetic to the family.Initially, Grete and his mother are more sympathetic towards him, Grete as a caretaker goes beyond to find what food would Gregor like to eat. On the other hand, the mother is against moving the furniture out of Gregor’s room hoping that he would return to his human form. Gregor’s father shows his sympathy towards him by abiding by the family in taking care of Gregor.
As Gregor’s appearance changes the family becomes gradually uncomfortable and unsympathetic towards him as it stresses them out. The mother is horrified with his appearance and faints, on the other hand, Grete is unable to bear to withstand with Gregor in the same room. Ultimately, Gregor is unable to communicate his feelings which leads apart from any humane feelings. Lastly, Grete the major supporter of Gregor’s decides to get rid of him.