The most useful context to evaluate the events in this excerpt would be:
knowing whether it was common in this culture for mothers to choose wives for their sons.
This context is essential because the excerpt revolves around Chên's mother actively seeking a suitable match for her son, indicating the cultural practice of parental involvement in marriage arrangements. Understanding whether this was a common practice would help assess the motivations and social dynamics at play in the interactions between Chên’s mother and Miss Wang.