单项选择题
Which of the following statements is TRUE?
A.Tai chi, xingyiquan and baguazhang are regarded as 3 representative categories of neijiaquan boxing.
B.According to wuxingquan, heart corresponds to water.
C.Southerners are good at using legs while the northerners are good at using the fists.
D.Tai chi is made up of eight footwork moves and five hand moves.