The correct option is B) “A snowstorm threatens their lives and forces them to seek shelter.” The reason why Slateh and Aaron spend days in the haystack is because a snowstorm took Aaron by surprise when he was taking the goat to the town. Even though Aaron did not agree with taking the goat to the butcher, he was obeying his father's orders.
Option C) is incorrect as it was not getting dark, it was the snowstorm that stopped him.
Option D) is also incorrect since Zlateh suspected that something wrong was happening but did not offer any resistance to move further.
The instances of situational irony that occur in the above passage are:
The aunt expects the boy to accept her explanations, but he does not.
The aunt expects the boy to be interested in the cows, but he is not.
A situational irony is a form of irony in which the actions have an opposite effect of what it is intended. The outcome of the situation is totally different to what it is expected. In the above excerpt, the answers which the boy gets from his Aunt and the way he deals with those answers are an example of situational irony.
The answer is c. games. Games is the object of the verb. What did they lose? They lost games.
Hope that helped you.