The correct option is C professionally advanced
The passage gives us a range of information about two bachelors- Wilkinson and Coristine. While stating that Wilkinson is the older of the two and is schoolmaster in Toronto Public School, it is mentioned that he is 'pretty well up' in the school. This obviously means that he is obviously in a high position at the school. Thus, in the given context, 'professionally advanced' (E) would be our answer. The other options do not fit this context and cannot be correct. So, E is our answer.