Definition: You are given a question on anatomy. Anatomy is the science that studies the structure of the body. You are also given 4 answer options (associated with "A", "B", "C", "D"), out of which only one is correct. You need to answer the question by selecting the correct option. You should only answer with the choice letter, not the whole answer.
Input: Which of the following structures should be visible on a dental panoramic radiograph?
(A)The mandibular canal (B)The mandibular canal and maxillary sinus (C)The mandibular canal, maxillary sinus and hard palate (D)The mandibular canal, maxillary sinus, hard palate and zygomatic arch

D