Reaction to the setting, this is due to the fact this excerpt mentions being homesick, which has to do something with setting.
The answer you are looking for is D
<span>b. Send her to conservatory for music.
Gregor cared deeply for his younger sister Grete, and wanted to help send her to school for her music. This relationship is probably Gregor's strongest, and Grete continues to care for Gregor with the most sympathy right after his transformation.</span>
Line three exemplifies the use of Simile. A simile draws a comparison between two things that are unrelated, usually using the word "like" or "as". Here, the speaker compares him or herself (a human) to a "noble amphibian" by using the word "like".