
Passage: Statistics show that people who practice Taijiquan all the year round have the same average life expectancy as those who never practice Taijiquan. Thus it can be seen that practicing Taijiquan can not strengthen the body and prolong life.
Question: Which of the following options, if true, would most strongly weaken the above argument?
A. A.Some athletes are physically strong, but their life expectancy is lower than that of ordinary people.
B. B.The movements of Taijiquan are gentle and gentle. Insisting on practicing Taijiquan all the year round can relax muscles and invigorate blood, nourish qi and calm the mind.
C. C.There are many frail and sick people who insist on practicing Taijiquan all the year round.
D. D.Taijiquan is easy to carry out, and there is no requirement for the venue and the physical quality of the athletes.
Answer: