How many weeks does a typical pregnancy last–

Correct option is A

Sol. A typical full-term pregnancy lasts about 40 weeks, measured from the first day of the last menstrual period (LMP). This is divided into three trimesters. Although delivery may occur anytime between 37 to 42 weeks, 40 weeks is considered the standard. This duration allows full development of fetal organs, especially lungs and brain, for extrauterine life.
Explanation of each option:
· (a) 40 – Correct. This is the standard gestational period used for due date calculation. It reflects full-term development.
· (b) 38 – Incorrect. Although some babies are born at 38 weeks and are healthy, this is considered early full-term and not the average.
· (c) 42 – Incorrect. This marks the beginning of post-term pregnancy, which increases risks for complications such as decreased amniotic fluid or fetal distress.
· (d) 44 – Incorrect. Pregnancy rarely extends this far. It is considered prolonged pregnancy, often requiring medical induction or intervention.