Turning out to be just like his father (A)
There are many examples in this excerpt, a few of which being:
"whether you can see it or not. I am a doctor, dear, and I know."
"Bless her little heart!" ... <span>"she shall be as sick as she pleases!</span>"
"What is it, little girl?"
In A the author in only affirming a fact. In C he describes some remembrance and in D he is declaring something positive about his soul and overcoming hesitation. But in B he mentions <em>"darkness", "peering" "wondering</em>" and <em>"fearing"</em>, all leading to to anxiety and making the reader keep interest and antecipation for the outcome.
The correct answer is B