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
Which of the following Maxillary Molar shows heart shape occlusal morphology 
Select and explain. 
A. 1st molar, B. 2nd molar, C. 3rd molar, D. None of the above
C: 3rd molar
Answer: C: 3rd molar 
Explanation: None