This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: Disease Causation, Measurements, Milestones, Subject name: Social & Preventive Medicine
Select true statement regarding propoion:- 
Select and explain. 
A. Numerator is not a pa of denominator, B. Numerator is pa of denominator and always expressed as percentage, C. Numerator is pa of denominator and not expressed as percentage, D. Numerator is not a pa of denominator and always expressed as percentage
B: Numerator is pa of denominator and always expressed as percentage
Answer: B: Numerator is pa of denominator and always expressed as percentage 
Explanation: Propoion = a/b X 100. numerator (a) is pa of Denominator (b). always expressed in percentage. Examples:Prevalence of disease, Case fatality Rate are also propoion.