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: Social & Preventive Medicine
Approximate magnitude of completed family size is denoted by 
Select and explain. 
A. General fertility rate, B. Total marital fertility rate, C. Total fertility rate, D. General marital fertility rate
C: Total fertility rate
Answer: C: Total fertility rate 
Explanation: None