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
Full form of FAST? 
Select and explain. 
A. Focused abdominal sonography for trauma, B. Focused assessment by sonography for trauma, C. Focussed assessment by sonography and tomography, D. Fast assessment by sonography and trauma
B: Focused assessment by sonography for trauma
Answer: B: Focused assessment by sonography for trauma 
Explanation: Ans. Focused assessment by sonography for trauma