D) “m” as the two verbs beginning with m - “moan” and “murmuring”
you could also say that it’s “i” with immemorial and innumerable
The ability to remain positive. Simple:3
I think you did really good this was a really eye opening topic really the only thing I have to say is you might want to change to summarize to to conclude it sounds more appealing other than that I don't really have any corrections.