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: Radiology
Tc labelled RBC's are used in which of the following condition? 
Select and explain. 
A. Biliary disease, B. Renal disease, C. Pulmonary embolism, D. Splenic disease
D: Splenic disease
Answer: D: Splenic disease 
Explanation: Pulmonary embolism is diagnosed by angiography or V/P scans.