Metamorphosis doesn't only explore the problems and concerns of modernity, but also casts light to the lives of assimilated Jews in Prague. Kafka's times were known for Jewish integration into European culture when it faced anti-Semitic attitudes and he was making a political stance and reference to Jewish identity in his writings. The correct answer is D.
The meaning of the poem shows a word "independence" which is opposite to our feelings... she used the symbol "hero" to describe what there is in people's inside(heart).
Maybe it's because not everyone can cope with each other after such a long time. Maybe not everyone has great social skills after living together for awhile.