This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: Biostatistics, Subject name: Social & Preventive Medicine
Symmetrical distribution is seen- 
Select and explain. 
A. Normal standard detion, B. Bimodal distribution, C. Skewed distribution, D. U-distribution
B: Bimodal distribution
Answer: B: Bimodal distribution 
Explanation: .