This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: Demography and family planning, Subject name: Social & Preventive Medicine
Which of the following is true about the child-women ratio - 
Select and explain. 
A. 0-4 years of children and 15-45 years of unmarried women, B. 0-5 years of children and 15-49 years of age of married women, C. 0-4 year of children and 15-44 years of all women, D. 0-4 years of children and 20-30 years of unmarried women
C: 0-4 year of children and 15-44 years of all women
Answer: C: 0-4 year of children and 15-44 years of all women 
Explanation: Child-woman ratio- This ratio, the CWR, the ratio of children under 5 per 1000 women of reproductive age. It is usually calculated by dividing the number of children in the age group 0-4 (of both sexes) by the number of women of reproductive age (15-49 years), and then multiplying by 1000. Ref: