The correct answer should beThrough primrose-tufts, in that sweet bower,The periwinkle trail’d its wreathes;
Alliteration is when words in the same sentence begin with the same consonant and here we have "through, tufts, the, that, trail'd" as well as "primrose, periwinkle".
The answer is "subordinate clause"
have a great day!!!
To entertain. The books are literally a fantasy series. I suppose it also helped her through her depression and such, but her actual purpose was to entertain and teach some morals suck as the importance of friendship.