Question

how did the imperial examination system affect social mobility during the song dynasty? it promoted wealth-based inheritance it rewarded only military valor it froze status for all families it allowed merit-based advancement

Explanation:

The imperial examination system in the Song dynasty was a merit - based system. Candidates were selected based on their performance in exams, not on wealth inheritance, only military valor, or freezing family status. This system allowed people to advance in society based on their merits (such as academic and literary abilities shown in the exams). The option "It promoted wealth - based inheritance" is wrong as the exam system was not about wealth inheritance. "It rewarded only military valor" is incorrect because the imperial exams were mainly for civil service and not just about military. "It froze status for all families" is also wrong as the exam provided a way for people from different social classes to move up. So the correct option is the one about merit - based advancement.

Answer:

D. It allowed merit - based advancement