This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: Musculoskeletal Radiology, Subject name: Radiology
16 year old boy presents to emergency with injury to his right index finger tip with glass piece. Which of the following radiological modality is best used for determination of glass piece in patient's finger? 
Select and explain. 
A. X-Ray, B. USG, C. CT Scan, D. MRI
A: X-Ray
Answer: A: X-Ray 
Explanation: Glass is always radio-opaque irrespective of content of lead and other additives. So plain X-Ray is best to look for glass foreign body.