How should the error in sentence be​ corrected? The worstest harassment is expecting sexual favors in return for a raise or promotion.

A.
The worst harassment is expecting sexual favors in return for a raise or promotion.
B.
The worser harassment is expecting sexual favors in return for a raise or promotion.
C.
The worse harassment is expecting sexual favors in return for a raise or promotion.
D.
The most worst harassment is expecting sexual favors in return for a raise or promotion.