A Nurse Notes a New Order for Sputum Specimen for Culture

A nurse notes a new order for sputum specimen for culture to be collected on a 91-year-old. The patient has a weak cough. The best action by the nurse is to

A) Place a clean cup at the patient's bedside and instruct him or her to spit into it whenever he or she is able.
B) Contact respiratory therapy to induce sputum collection.
C) Explain the order to the patient and plan sputum collection for the following morning.
D) Encourage the patient to limit fluid intake so that sputum can be more readily collected.