Phoque je ne sais pas que les choses sont bizarres
He taught them discipline and military strategies used by other armies in order to help them become more professional.
I believe the answer is: B.because of advances in science, medicine, technology, and the arts
During the hand civilization, China developed many advancement in use of herbs for medicinal purpose and adopted many technology from all across the world which increase their agricultural production capacity.
Their artworks were also developed to the point where it became a hot commodity among European nobles.
The objective of the Spring Offensive in March 1918 was to defeat French and British armies on the Western front, which would cause Germany to win total victory if it went as planned