Answer:
The rhythm supports the fast pace of the narrator's immature love.
Explanation:
In William Butler Yeats' poem "Down by the Salley Gardens", the speaker is a lover who meets his beloved <em>"down by the salley gardens"</em>. And being young, the speaker reveals his love for her, depicting the fast-paced nature of his immature love.
In the given lines from the poem, the speaker reveals how they met. The speaker admits,<em> "I, being young and foolish"</em> would not agree with her advice to take<em> "love easy, as the leaves grow on the tree".</em>
Throughout the four lines given, the rhythm focuses on the fast-paced nature of the speaker's love for 'his love', though immature.
Thus, the correct answer is the second option.