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
The denominator of general feility rate is: 
Select and explain. 
A. Midyear population of women of 1544 years of age, B. Total year population of women of reproductive age group, C. Average population of women in a year, D. Any of the above
A: Midyear population of women of 1544 years of age
Answer: A: Midyear population of women of 1544 years of age 
Explanation: Midyear population of women of 1544 years of age