Women of reproductive age refers to all women aged–

Correct option is B

Sol. According to WHO and NFHS, the reproductive age group in women is considered to be 15 to 49 years. This range covers adolescence to pre-menopausal stage, when women are biologically capable of conceiving. All national and international health programs use this age range to monitor maternal and child health indicators.
Explanation of each option:
· (a) 18–45 years – This range is too narrow and excludes teenage pregnancies and women above 45 who can still conceive.
· (b) 15–49 years – Correct answer. It is the globally accepted standard for assessing reproductive health statistics and program coverage.
· (c) 21–45 years – This excludes women in their late teens and late 40s, who may still be fertile and need reproductive care.
· (d) 18–40 years – Too restrictive; many women conceive after 40 and before 18, especially in underserved areas.