Question

how did political stability following the reunification of china contribute to the spread of buddhism?
it caused the emperor to declare buddhism as the official state religion.
it resulted in the forced conversion of chinese citizens to buddhism.
it restricted buddhist practices primarily to the imperial court.
it allowed for safer travel of buddhist missionaries across china.

Explanation:

After the reunification of China, political stability allowed Buddhist missionaries to travel more safely across the country. This facilitated the spread of Buddhism. The other options are incorrect. There was no forced conversion of Chinese citizens to Buddhism. Buddhism was not restricted to the imperial court. And the emperor did not declare Buddhism as the official state religion as a direct result of reunification (this was a more complex process over time).

Answer:

It allowed for safer travel of Buddhist missionaries across China.