Hi!
Your answer is D.
We can infer this from the section where it says "Which home? The father home or the mother home."
This section implies that Brian's parents are divorced because his parents are living separately, in two different homes.
You might think that it is B, because he says he will probably be back home, but notice it says "by late night or early morning". He says he might be back the next day, in the morning. Therefore it is NOT B.