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
Comparison of proportions can be made by: 
Select and explain. 
A. 't' test, B. Chi-square test, C. ANOVA, D. Correlation & Regression
B: Chi-square test
Answer: B: Chi-square test 
Explanation: None