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
Bitewing radiographs are taken to look for: 
Select and explain. 
A. Narrowing of periodontal space, B. Proximal caries, C. Resorption of root, D. Internal resorption
B: Proximal caries
Answer: B: Proximal caries 
Explanation: None