Which of the following is an example of the skills of bare-handed boxing？

Which of the following is an example of the skills of bare-handed boxing？
A.Form and will boxing（Xingyiquan）
B.Eight trigram palm（Baguazhang）.
C.Tai Chi Sword
D.Shadow boxing（Taijiquan）.
正确答案：Form and will boxing（Xingyiquan）；Eight trigram palm（Baguazhang）.Shadow boxing（Taijiquan）.