This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: Miscellaneous, Subject name: Medicine
Most accurate, inexpensive, noninvasive, simpler test of Helicobacter pylori 
Select and explain. 
A. Stool antigen test, B. Serology, C. Urea breath test, D. Biopsy wrease test
C: Urea breath test
Answer: C: Urea breath test 
Explanation: (C) Urea breath test TESTS COMMONLY USED TO DETECT H. PYLORI:NoninvasiveSerologyInexpensive & convenientCannot be used for early follow-up; some commercial kits inaccurate13C or14C urea breath testInexpensive and simpler than endoscopy; useful for follow-up after treatmentLow-dose irradiation in 14C testStool antigen testInexpensive and convenient; useful for follow-up after treatment; may be useful in childrenNew test; role not fully established; appears less accurate than urea breath test