Answer:
B. Unification of the empire
Explanation:
I would pick B. because, in order to have an empire, you need all three of those. D makes no sense because you can't really put those two together. A doesn't really connect either. The only relation is that they have a powerful army.
Hope I helped :)
<span>Rich men who had land from their families
merchants who had become wealthy from trade
soldiers that were famous from their courage </span>
A communist is the answer.
China has a ruling communist party and therefore it is technically a communist country.
This means that all private companies are banned and everything belongs to the government.
However China still allows some form of of capitalism( this means that everything is controlled by private companies rather than the government ex USA)