This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: None, Subject name: Anaesthesia
While introducing the Swan-ganz catheter, its placement in the pulmonary aery can be identified by the following pressure tracing: 
Select and explain. 
A. Diastolic pressure is lower in PA than in RV, B. Diatolic pressure is higher in PA than in RV, C. PA pressure tracing has diacrotic notch from closure of pulmonary valve, D. RV pressure tracing for plateau and sharp drop in early diastole
C: PA pressure tracing has diacrotic notch from closure of pulmonary valve
Answer: C: PA pressure tracing has diacrotic notch from closure of pulmonary valve 
Explanation: C i.e. PA pressure tracing has diacrotic notch from closure of pulmonary valve