Final answer:
The action that has most benefitted or contributed to the revival of Daoism in contemporary China is adaptation to modern social and political contexts.
Step-by-step explanation:
The action that has most benefitted or contributed to the revival of Daoism in contemporary China is B) Adaptation to modern social and political contexts.
Daoism, also known as Taoism, aims to foster harmony and accord with the natural way. In response to social unrest and suffering, Daoism rejects traditional morality and promotes simplicity, elimination of desires, and naturalness. By adapting to modern social and political contexts, Daoism is able to remain relevant and resonate with contemporary Chinese society.