Answer:
The answer is: A) The rhyme scheme supports the narrator’s complaint of monotony.
Step-by-step explanation:
This excerpt is basically explaining a routine; however it doesn't seem as to be enjoying it or being cheerful about it, justyfing this, we can see a modal verb there, "must" which implies obligation; so this is the reasin wht letter B isn't possible. This excerpt isn't humorous as well, adjectives and nouns are used in a simple manner, nothing humorous to see, as well as no emotional outburst for, again, simple words are used, nothing to exaggerate being humorous or emotional, this is why letter C and D aren't correct. On the other hand we have letter A which is basically what a routine is about "monotony".