I think the answer is Im worried because I havent heard from you in a while. Hope this helps!
Fixed verse forms are a kind of template or formula that poetry can be composed in. The opposite of Fixed verse is Free verse poetry, which by design has little or no pre-established guidelines.
The various poetic forms, such as meter, rhyme scheme, and stanzas guide and limit a poet's choices when composing poetry. A fixed verse form combines one or more of these limitations into a larger form.
A form usually demands strict adherence to the established guidelines that to some poets may seem stifling, while other poets view the rigid structure as a challenge to be innovative and creative while staying within the guidelines.
Answer: D) A hand comes out of the lake to grab King Arthur’s sword.
Explanation: A supernatural event is a situation or a thing that can't be explained by nature or science, and are assumed to originate from otherworldly forces. From the given situations from "Morte d'Arthur by Sir Thomas Malory", the one that represents an example of a supernatural event is the corresponding to option D: A hand comes out of the lake to grab King Arthur’s sword, because it seems that it doesn't have a logical explanation in nature or science.