A nurse is caring for a client who is postoperative following total hip arthroplasty. Which of the following actions should the nurse take to prevent dislocation of the prosthesis?

Position the client's knee slightly higher than the hips when up in a chair.

Raise the head of the client's bed to a high-Fowlers position.

Elevate the client's affected leg on a pillow when in bed.

Keep an abduction pillow between the client's legs.