Many policy experts say that shifting a portion of health-benefit costs back to the workers helps to control the employer's costs, but also helps to limit medical spending by making patients more careful consumers.

(A) helps to control the employer's costs, but also helps

(B) helps the control of the employer's costs, and also

(C) not only helps to control the employer's costs, but also helps

(D) helps to control not only the employer's costs, but

(E) not only helps to control the employer's costs, and also helps