Answer:
Alvarez explains that, although her parents reacted differently to the stress they endured, both became silent about the dictatorship is the correct answer.
Explanation:
The excerpt belongs to A Genetics of Justice, a book written by American author Julia Alvarez, whose family lived i Dominican Republic at the beginning of Rafael Trujillo's dictatorship.
Alvarez explains her parents' attitude towards the situation by saying that, at the beginning, her father would participate in the meetings that planned to invade the island, while her mother would react hysterically to these actions. At the end, her mother continued reacting this way, while her father stopped attending those meetings; even though the narrator does not know for sure why, both parents become silent at the end.