Select the correct answer.

Which detail best shapes the idea that Eric is maturing and becoming more independent?

A. Eric travels across the field where no one could see him instead of along the road when he returns home.
B. Eric is surprised that his mother did not ask the neighbors to help with milking their cows.
C. Eric realizes that Nils will understand if he decides to return home instead of going to stay with his brother.
D. Eric tells the train conductor that he does not yet know if he plans to get off of the train in Red Oak.