Final answer:
The poem addresses the subjects of suffering, ignorance, and acceptance, referring to philosophies that link suffering with attachment to temporary things and holding ignorant views while highlighting that acceptance is key, as seen in the five-stage model of grief. Indifference may also be inferred but is not explicitly stated in the provided context.
Step-by-step explanation:
Based on the reference information provided, the subjects addressed in the poem include suffering (B), acceptance (D), and ignorance (C). Suffering and ignorance are closely linked in the context of the poem, which is reflected in the philosophy that suffering is caused by attachment to temporary things, and the remedy for this is enlightenment. This enlightenment comes from understanding the continuous chain of causes for our perceptions, feelings, and desires. Acceptance is also another subject mentioned, explicitly highlighted in the five-stage model of grief by KüBler-Ross, which includes acceptance as the final stage. Therefore, the correct subjects addressed in the poem are suffering, ignorance, and acceptance.
Additionally, indifference (D) is not explicitly mentioned in the context, but one could argue that it could be an inferred subject based on the philosophical perspectives that are given. Understanding or indifference towards the chain of causes and the temporary nature of things could lead to detachment, which is not directly mentioned but could be related to acceptance.