Scout got in trouble for explaining why Walter couldn't borrow a quarter to buy lunch. Scout blamed Walter for her getting in trouble so she rubbed his nose in the dirt until Jem stopped her and invited Walter to dinner. This shows Scout to be feisty as well as valuing school. She can also be impulsive.
B - it suggests that parent's words were held in very high regard
The father had high aspirations for his son and told him what to do - the son willingly followed his father's directions, knowing that he was wise and only wanted what was best.