D. Since the father likes taking risks in a game, he might like taking risks in life as well.
This is the best choice. Process of elimination helps when answering this question. From this excerpt, we don't have any clues that the father is possessed or says insane things. We also cannot infer that the woman knitting indicates that the character don't have good clothes to wear. During this time period many women would knit in the evening. We also can't infer that the son is not old enough to play chess. There is nothing to indicate the age of the son or that he doesn't know the rules.
The growing uncertainty about the outcome of events
I would say "between" because it is a preposition.
