I believe that the exposition in the paragraph is 'Causal analysis.'
I would go with C. A bit of huckleberry finn
This, is insane, I just got over this lesson in class. But It's defiantly D ( many times then were focused on romanticism rather than logic.
Crocus, Chionodoxa, tulips (Tulipa), and some kinds of hyacinths (Hyacinthus orientalis) are among the plants that voles commonly damage. Snowdrops (Galanthus nivalis) are one type that voles don't eat, happily. The life cycle of grape hyacinths (Muscari botryoides) differs from that of other spring bulbs.
Two lines that end in a Gg rhyme scheme.