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
Caries activity score  = a + b1  (diet) + b2  (age) is an example of : 
Select and explain. 
A. Simple linear regression, B. Multiple linear regression, C. Simple logistic regression, D. Multiple logistic regression
B: Multiple linear regression
Answer: B: Multiple linear regression 
Explanation: Types of Regression:
If dependent variable is Quantitative → apply