单项选择题

In The Spiritual Pivot-The Normal and The Adverse, The Fat and The Thin (Líng Shū-Nì Shùn Féi Shòu, 灵枢•逆顺肥瘦), the flowing direction of qi and blood inside the hand meridians is summarized as: The three yin and three yang meridians of the hand go from the zang-organs to the hand.   
A、正确
B、错误