问题：
[单选题]Which of the following statements is TRUE?
ATai chi, xingyiquan and baguazhang are regarded as 3 representative categories of neijiaquan boxing.
BAccording to wuxingquan, heart corresponds to water.
CSoutherners are good at using legs while the northerners are good at using the fists.
DTai chi is made up of eight footwork moves and five hand moves.
