There’s no context but I think B) the sonnet
Everything but C has a saddened tone to it because it shows a bit of pity or jealousy towards some of the sentences.
The Land is set in America after the Civil War. The story takes place in the South. Many details help show this time period. First, there is tension between whites and African Americans. Not everyone can read or write. People are treated differently and cannot go to school together. People also travel using horses and wagons.
Philology is fundamentally "the correct interpretation of texts."
the brothers' ability to overcome difficulties to succeed as scholars
You shouldn't trust the information if another source disapproves. You should look more into it, finding several sources with the same information before using anything you find.
