Sentence Correction

Hi All

I read somewhere that "AND ALSO" together is redundant. and while in one similar SC's explanation in verbal review, the official explanation says the two effects, stated in parallel ways, could be linked with AND ALSO.

here is the Question.

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

I agree B is wrong. But what is the senetnce B says helps to control.....and also to limit....??

Isn't and also wrong here. Please provide examples with ur explanations.