Besides offering such physiological rewards as toned muscles, karate, if practiced regularly, can turn the body into a dangerous weapon and produce numerous other benefits.

(A) karate, if practiced regularly, can turn the body into a dangerous weapon
(B) one can turn the body into a dangerous weapon through karate, if it is practiced regularly
(C) the body can be turned into a dangerous weapon as a result of karate if practiced regularly
(D) when karate is practiced regularly, the body can be turned into a dangerous weapon
(E) when practiced regularly, the results of karate can be to turn the body into a dangerous weapon

What is wrong with other options?

OA A