In "Auspex," the phrase “dead leaves and snow” at the end of the first stanza implies that the speaker is experiencing an absence of love or passion.
The author compares his heart to a nest that once had birds in it. In this nest, when the last bird leaves, it remains only with "dead leaves and snow", and not with life and warmth that those birds (or feelings) had.
At first glance, the passage seems like an appeal to ethos because of the name dropping. However, if one looks at the question that follows the statement, you can clearly see that it is an appeal to logos. As it persuades the audience to use their logic to come up with the answer to the question.
The correct answer is B. Fixed verse is a kind of poetry that has its rules where the poem can be built. For example: Sonet, Sestina, Limerick, etc.