Okay, let's tackle this question. The user is asking about postmortem signs that indicate a woman has given birth, except one. First, I need to recall the various anatomical and physiological changes that occur during pregnancy and childbirth.

The core concept here is understanding the postmortem findings specific to a woman who has delivered a child. These include anatomical changes in the pelvis, cervix, and possibly the breasts. The question is asking which of the options would not be a sign of delivery.

The correct answer is likely to be a sign that doesn't occur post-delivery. For example, a closed pelvis might not be a sign, whereas a widened pelvis is common. Also, the presence of episiotomy scars or cervical changes like erosion or atresia could be relevant. The fundus of the uterus might be lower if the woman had a recent delivery.

Now, the options are missing, so I'll have to think of common distractors. For instance, if an option mentions "widened pelvis," that's a sign. "Cervical atresia" might not be correct. Wait, cervical atresia is a congenital condition, not related to delivery. So if an option says "cervical atresia," that's incorrect. Another wrong option could be "absence of episiotomy," but that's not a sign of delivery. Or maybe "uterus size of 14 weeks," which would indicate a recent pregnancy but not delivery.

Wait, the question is about postmortem findings that indicate delivery. So signs like a flattened pubic symphysis, which can occur due to hormonal changes during pregnancy leading to ligament relaxation, or a widened sciatic notch. The cervix might show signs of dilation or erosion from previous deliveries. The breasts might have lactational changes.

If one of the options is "closed pelvis," that's incorrect because the pelvis becomes more flexible and may show signs of strain. Alternatively, if an option mentions "uterus size of 14 weeks," that's a sign of pregnancy, not delivery. So the exception would be something that doesn't occur after delivery.

Another possible wrong option is "absence of lochia," but that's a sign of non-delivery. However, lochia is postpartum discharge, so if the woman died before delivery, there would be no lochia. But the question is about postmortem signs indicating delivery, so absence of lochia would imply no delivery, making that a correct exception.

Wait, the question asks for the option that is NOT an indicator. So the correct answer is the one that doesn't show delivery. For example, "closed pelvis" is not a sign of delivery. Also, "uterus size of 14 weeks" suggests pregnancy but not delivery. So the exception is the one that doesn't indicate delivery.

I need to structure the explanation with the core concept, explain why the correct answer is right, then each wrong option. The clinical pearl would be to remember key postmortem signs like pelvic changes, cervical erosion, etc.

**Core Concept**
Postmortem identification of a woman who has delivered a child involves recognizing anatomical and physiological changes from pregnancy and childbirth. Key indicators include pelvic ligament laxity, cervical erosion, episiotomy scars, and uterine involution.

**Why the Correct Answer is Right**

✓ Correct Answer: A. Walls of uterus are convex from inside