The parenthetic expression is not a nonessential element. for there for it is false
The correct option is B.
The presence of the British religion and government in Umofia village brought diverse results. Some of the villagers, especially the elders vehemently oppose the British religion and culture while some, mostly the young ones and the outcasts of the society [The Osu] warmly embrace the new religion. Different thing, which are considered as taboos and which are contrary to the traditional belief started to happen; for instance the killing of the python which the people worship by the new christian convert. Thus, everything become scattered and things fall apart according to the title of the book; the center could no longer hold.<span />
I believe the answer is improve, i hope this helps
B setting
In any type of text the setting always describes the place or time the story takes place in.