"Five Animals Play" is a health preserving technique created by Hua Tuo, a famous doctor in Han Dynasty, imitating the activities of five animals: tiger, deer, bear, ape and bird (crane). So it's also called hua tuo wuqinxi. Five animal plays can cure diseases and strengthen the body. When practicing, you can practice a bird bomb alone or one or two movements. When practicing one or two movements alone, increase the number of exercises.

Therefore, choose: d.