Answer:
b) a love letter
EXPLANATION: The intensity of her desire to escape is seen in her revealing the existence and contents of the letter from the smitten medical student. This is her most prized possession. To show it to the Underground Man affirms the power of his speech on her. The irony of the situation, however, is that the letter shows that she can evoke genuine feelings for love from others, whereas the Underground Man is incapable of communicating with another person. As the Underground Man leaves, Liza is left alone with her prized treasure, but the Underground Man is also alone — exhausted and bewildered and solitary, he must walk home through the snow.