**Core Concept**
Preeclampsia (PIH) is a hypertensive disorder of pregnancy characterized by new-onset hypertension and proteinuria after 20 weeks of gestation. It is more common in primipara women due to increased vascular resistance and placental factors, rather than multipara women.

**Why the Correct Answer is Right**
Preeclampsia (PIH) is significantly more common in primipara women than multipara women. This is due to the fact that first-time pregnancies have less developed uterine and placental vasculature, leading to poor placental perfusion and increased endothelial activation. Multipara women have more established placental vessels and are less likely to develop PIH. Thus, PIH is **less** common in multipara women, making it the exception in the question.

**Why Each Wrong Option is Incorrect**
Option A: Anemia is more common in multipara women due to increased blood loss during childbirth and repeated pregnancies.
Option B: Placenta previa is more common in multipara women because of uterine scarring and prior deliveries.
Option D: "None of the above" is incorrect because PIH (option C) is indeed less common in multipara women, so it fits the "exception" category.

**Clinical Pearl / High-Yield Fact**
Remember: **PIH is more common in primipara**, not multipara. This is a classic exam trap — students often confuse the risk profile of preeclampsia by assuming it increases with parity. Always recall that first-time mothers face higher risk due to placental and vascular immaturity.

✓ Correct Answer: C. PIH