Answer:
B : The Sound of a continuously barking dog seems quieter after a few minutes.
Explanation:
"When I said you were a friend of Tom's, he started to abandon the whole idea. He doesn't know very much about Tom, though he says he's read a Chicago paper for years just on the chance of catching a glimpse of Daisy's name" (p.152)
I don't think he would neglect his children, or allow elders to make all the decisions, I believe that he would encourage his children to play on his own. I would go with he encourages children to play on their own.