Answer and Explanation:
The theme that can be inferred from this passage is the idea that "change is inevitable and can bring uncertainty."
In the passage, Papá acknowledges that things are going to change for the family, implying that their current situation will not remain the same. This suggests that change is inevitable and cannot be avoided. The mention of the soldiers not coming back indicates that some significant event has occurred, leading to this change.
Furthermore, the father's sigh and his action of giving Mamá's wedding ring may indicate a sense of uncertainty and concern about what lies ahead. Change often brings unknown outcomes and can be unsettling, as reflected in Papá's demeanor.
While the passage does not explicitly state that change is easy or difficult to deal with, the mention of change and the father's response suggest that it can bring uncertainty and emotional challenges. Therefore, the theme in this passage is the inevitability of change and the accompanying uncertainty it may bring.