A Patient with Lung Cancer Develops Pleural Effusion

A patient with lung cancer develops pleural effusion. Which explanation by the nurse would help the patient understand this problem?

A) "Pus has developed in your alveoli that must be removed to improve your breathing."
B) "You have large amounts of fluid collecting in your airways because of your diagnosis."
C) "Fluid has collected in the space between your lungs and the sac surrounding your lungs."
D) "Fluid in your pericardial sac places pressure on your lungs, making it difficult to breathe."