The dialogue in the passage serves several purposes. The three that apply are:
a. It moves the plot forward. - The dialogue reveals the urgent situation involving Father's injury and establishes the immediate need for action.
e. It shows how characters interact with each other. - The dialogue illustrates the relationships between Mother and her children, as well as the urgency and concern in their interactions with each other.
While option b mentions describing the setting, the primary focus of the dialogue is on the characters and their situation rather than on the setting itself. Options c and d do not directly apply as there is limited background information provided about the characters and no commentary on the country’s situation in the dialogue. Thus, b, c, and d do not apply.