Physiological research has uncovered disturbing evidence linking a num

Physiological research has uncovered disturbing evidence linking a number of structural disorder disorders to logging. 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.-But what is the cause and what is the effect? Not very convincing. Keep this aside.

(B) Jogging causes more serious disorders than other sports.-Out of Scope. We are not concerned about "other sports"

(C) The jogger's level of experience is a factor determining the likelihood of a jogging injury.- Based on the "injuries do not occur exclusively among beginning runners, veteran joggers suffer an equal percentage of injuries", this doesnt hold true. Challenges the premise of the argument.

(D) Some sports are safer for the human body than jogging.-We want to find out whether humans can jog or not. Other sports are Out of Scope for us.

(E) The human species is not very durable.-I have always suspected this my whole life considering our self-destructing tendencies, but this point vis a vis our argument is Out of Scope.

Looks like A is the winner.