How was the creation of a standardized logographic script important for the development of East Asian states?

a$.$ It created a totally uniform spoken and written language across East Asia.

b$.$ It allowed different regions with different spoken languages to share the same written language, assisting in political unification.

c$.$ It gave more power to the Chinese bureaucrats who knew how to write and allowed states to increasingly centralize.

d$.$ It facilitated inter$-$regional trade and thus helped states accrue wealth much faster.

e$.$ It allowed more people within East Asia to become literate and participate in politics and commerce.