Confucianism has had a major impact on Chinese history by promoting A. Resistance to authority
B. Unity with the dao
C. The importance of a strong central government
D. The value of the filial piety in creating social harmony

hello!

according to the passage the most suitable options are two. the first one is "by leading the aef to victory in several key battles" like the battle of saint- mihiel and the battle of cantigny mentioned in the passage you copied here. the second one is "by the aef and allied forces defeat germany" since the passage says that his army destroy the german resistance in the meuse- argonne offensive. and also, "by insisting that the aef operate as an independent force".

hope this