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: Medicine
Diagnostic tests for H. Pylori include all of the following except - 
Select and explain. 
A. Urea-breath test, B. Rapid urease test, C. Gastric biopsy & Warthin-starry stain, D. SAFA test
D: SAFA test
Answer: D: SAFA test 
Explanation: None