I believe it is D.
Why do you think so?
Well, A participial phrase is a group of words consisting of a participle and the modifier(s) and/or (pro)noun(s) or noun phrase(s) that function as the direct object(s), indirect object(s), or complement(s) of the action or state expressed in the participle, such as: Removing his coat, Jack rushed to the river. -A website I cannot name because of Brain.ly's Guidelines.
And since D: "Exhausted and stressed out, Darnell closed his textbook." has a participle, modifiers, and a noun phrase.
Note: Sorry if this took long, I had to do some research. ^^