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
Multiple canals in mandibular premolars are seen in? 
Select and explain. 
A. Africas, B. Caucians, C. Not Recalled, D. Not Recalled
A: Africas
Answer: A: Africas 
Explanation: None