The only word out of these four which has an obvious negative connotation is C) harangue. That word means <em>to lecture somebody in an aggressive manner</em>, which is negative.
The other words have neutral connotation.
I believe it might be B. Problem
The answer is D he is a liege to the dark! Hope this helps ^-^ :D
D. Drowned and buried
Because both of these words relate to death which obviously isn’t a happy topic.