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
Hypoplastic defects in the enamel appears in radiographs as 
Select and explain. 
A. Brown spots running horizontally, B. Radiotucent areas, C. Sclerotic areas over the surface of a tooth, D. Radio opaque areas
B: Radiotucent areas
Answer: B: Radiotucent areas 
Explanation: None