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
For the calculation of the positive predictive value of a screening test, the denominator is comprised of: 
Select and explain. 
A. True+ves + False-ves, B. False+ves + True-ves, C. True+ves + False+ves, D. True+ves + True-ves
C: True+ves + False+ves
Answer: C: True+ves + False+ves 
Explanation: None