LSAT6-2-2选项解释~

Physiological research has uncovered disturbing evidence linking a number of structural disorders to jogging. Among the ailments seemingly connected with this now-popular sport are spinal disk displacements, stress fractures of the feet and ankles, knee and hip joint deterioration, and tendonitis. Furthermore, these injuries do not occur exclusively among beginning runners—veteran joggers suffer an equal percentage of injuries. What the accumulating data suggest is that the human anatomy is not able to withstand the stresses of jogging.

Which one of the following is an assumption of the argument?

(A) The link between jogging and certain structural disorders appears to be a causal one.

(B) Jogging causes more serious disorders than other sports.

(C) The jogger’s level of experience is a factor determining the likelihood of a jogging injury.

(D) Some sports are safer for the human body than jogging.（A）

(E) The human species is not very durable.

答案我还是选对了~但是不懂得A的意思~~可以请求帮忙翻译一下吗？

The conclusion of this argument is: human anatomy is not able to withstand the stresses

of jogging.

The link between jogging and certain structural disorders appears to be a causal one.

If you negate it: The link between jogging and certain structural disorders appears to be

not a causal one. This negation weaken the conclusion, so it is the assumption of this

argument.