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
Embossed pattern in radiograph is due to: 
Select and explain. 
A. Static electricity, B. Lead foil side of the film kept towards the tube, C. Both 1 and 2, D. None of the above
B: Lead foil side of the film kept towards the tube
Answer: B: Lead foil side of the film kept towards the tube 
Explanation: Herring bone pattern is also known as Embossed pattern.