A nurse is applying a belt restraint to a client who has become physically aggressive. Which of the following actions should the nurse take?

a. Applying the restraint under the client's clothes: Restraints should be applied over the client's clothes to avoid direct skin contact and reduce the risk of skin irritation or injury. b. Tying the restraint to the railing of the client's bed: Restraints should not be tied to bed rails or any other fixed objects. This can increase the risk of injury to the client and should be avoided. c. Placing the client in a sitting position is appropriate when applying a belt restraint, as it helps prevent respiratory compromise and allows the client to maintain a safer and more comfortable posture. d. A belt restraint should be placed around the client's waist, not across the chest, to avoid restricting breathing.