Answer:
B It can be comforting to get lost in good memories while going through chemo.
Step-by-step explanation:
The theme of the poem is that a person may feel dishearten when he is going through chemotherapy. The person who is suffering from cancer feels like he is going through hell. The author say that in such a situation the person should memories his good memories, the quality time he spent with his loved ones will comfort him some way and eases his pain.