Final answer:
It is challenging to ascertain the precise theme of the poem without the full text, but indications from the provided texts suggest it deals with the complex influence of external circumstances on personal emotions and relationships. The theme of trust and communication in friendships may be relevant, but the full context is required to confirm.
Step-by-step explanation:
The question asks which option best describes a major theme of the poem. Without the specific text of the poem, it is challenging to provide an accurate answer; however, based on the provided excerpts and the exploration of themes such as the nature of beauty, sentimentality, unrequited love, relationships, the emotional experiences of poverty, and the complex nature of human emotions, the poem seems to delve into multifaceted human experiences and emotions. Given the references to love's impact on perceptions, the consequences of poverty on familial love, and the roles of beauty and sentimentality, one could argue that a recurring theme might be connected to how external circumstances influence internal emotions and relationships.
Considering the various aspects touched upon in the provided text, such as the comparison of beauty to a tear in a moment of environmental mourning or the impact of poverty on the protagonist's affection towards his children, the theme of the poem appears complex. It involves the influence of external factors on personal relationships and emotions. One of the options, 'D) A healthy friendship is built on trust and communication,' reflects an important aspect of relationships that could be relevant to the poem, but without the full context, confirming this theme is not possible. However, it is clear that the poem's intent is deeper than a surface-level portrayal of a particular situation, and it is likely that it explores broader or more nuanced themes.