The story of being unhappy about Shu is that Liu Chan, the late ruler of Shu in the Three Kingdoms period, was fatuous and was forced to move to Luoyang after Shu was destroyed. Si Mazhao, the king of Wen, gave a banquet to entertain him and showed him local songs and dances in Shu. Officials in Shu were very sad when they saw it, but Liu Chan was very happy and had no hatred of national subjugation. After a few days of fun, Sima asked Liu Chan, "Do you still want Shu?" Liu Chan said: "Be happy here, don't think about Shu!"
the answer is: B.