Final answer:
The emotional response the daffodils evoke in the speaker suggests that the poem is a lyric poem.
Step-by-step explanation:
The characteristic of the poem that suggests it is a lyric poem is the emotional response the daffodils evoke in the speaker. The poem describes the speaker's encounter with a field of daffodils and the profound effect it has on their emotions. The speaker expresses joy and a sense of being uplifted by the experience, which is a common characteristic of lyric poetry.
Learn more about Characteristics of lyric poetry