A nurse is planning care for a client who is having an exacerbation of chronic bronchitis. Which of the following interventions should the nurse plan to include?

Keep the head of the client's bed at a 15° angle.

Place the client on bedrest for 24 hr.

Instruct the client to increase fluid intake to 2.5 L per day.

Encourage the client to perform deep-breathing exercises every 6 hr.