Answer:
I try to speak but
My mind is deep in thought
They're calling me back to earth like I'm an astronaut
[someone who spaces out often]
or
I don't hate you
I just need some time alone
I'm sorry I can't stay
I'd rather be at home
[introverted]
C. The author uses a simile to compare the feeling of nervousness to melting because the sentence uses the word "like," which is an underlying hint to similes. Without it, it would be a metaphor.