Why did members of the Chen descent group have difficulty reconstructing their genealogy?

Question

Quizplus · Accepted Answer

The text mentions that members of the Chen descent group had difficulty reconstructing their genealogy due to migration and political pressures. This suggests that families may have been displaced or fragmented, making it difficult to trace their lineage accurately. Options A and B may also present some obstacles, but they are not explicitly mentioned in the text. Option D is not plausible as a primary reason.

Why Did Members of the Chen Descent Group Have Difficulty