The sentence that uses correct punctuation is <span>C. In time, of course, all issues get resolved, but not necessarily in the way you would like.
You need to use comma before but here because it connects two independent clauses.
In A, there should be a dash (-) before he was concerned, not a comma.
In B, there should be a colon (:) before the list, not a semicolon.
In D, there should be a comma before yet, not a colon. </span>
By the looks of it I think that it would be B. Outside is to inside.
The sentence of this excerpt that gives a sense of Stephen's reluctance to take part in sports is:
<em>He kept on the fringe of his line, out of sight of his prefect, out of the reach of the rude feet, feigning to run now and then. </em>
This sentence conveys the idea that, although the character is on the brink of getting involved, he does not actually take part. Rather than that, he tries to remain invisible for the ones that are, in fact, involved.