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: Dental
[{'content': 'Which of the following is indicated for cases with reduced inter arch space, where the pontic should give the appearance of an exaggerated occluso-gingival dimension: \nSelect and explain. \nA. Ovate pontic, B. Spheroidal pontic., C. Fish-belly pontic., D. None.', 'role': 'user'}, {'content': 'Answer: B \nExplanation: These pontics contact the tissue only at the ridge crest\nThey do not have concave gingival surface', 'role': 'assistant'}]