Which of the following is not an effective way of minimizing slips and falls in a food service establishment

Hello. This question is incomplete. The complete question is:

"Which of the following is NOT an effective way of minimizing slips and falls in a food service establishment?

providing employees with slip-resistant footwear . teaching employees how to walk over a wet surface without slipping . cleaning up spills immediately . putting down mats in certain areas of the kitchen."

Teaching employees how to walk over a wet surface without slipping

Explanation:

Slips happen all of a sudden, there is no way for an employee to learn not to slip on a slippery surface (such as wet floors).

Many of the workplace accidents accounted for every year, such as dislocation and fractures, may have been caused by slipping, tripping and falling in the workplace. Some ways to prevent these slip accidents are:

what are the choices?