The answer is B. The emotional response the daffodils evoke in the speaker
Step-by-step explanation:
A lyric poem is one that focuses on expressing strong emotions or feelings usually from the experience and the perspective of the author, due to this, a lyric poem can be identified based on the emotional charge it has. In the case of "I Wandered Lonely as a Cloud" these strong emotions and feelings in response to the daffodils the author observes can be seen in "A poet could not but be gay, In such a jocund company" or in "Which is the bliss of solitude; And then my heart with pleasure fills" that show the author experienced bliss due to the daffodils. Thus, the characteristic of this poem that suggests it is a lyric one is the emotional response of the author or speaker due to the daffodils.