## **Core Concept**
Preeclampsia is a pregnancy complication characterized by high blood pressure and often accompanied by significant amounts of protein in the urine. The management of preeclampsia involves measures to control blood pressure and prevent complications.

## **Why the Correct Answer is Right**
The correct answer, **D. Low-dose aspirin**, has been proven effective in the management and prevention of preeclampsia. Low-dose aspirin works by inhibiting the production of thromboxane A2, a potent vasoconstrictor and platelet aggregator, thereby reducing the risk of preeclampsia. This is achieved through the **cyclooxygenase (COX) enzyme** inhibition, which plays a crucial role in the synthesis of prostaglandins and thromboxanes.

## **Why Each Wrong Option is Incorrect**
- **Option A:** While certain antihypertensive drugs are used to manage high blood pressure in preeclampsia, they are not specifically "proved to be effective in the management of preeclampsia" in the context of prevention or as a first-line treatment for all cases.
- **Option B:** Similarly, another antihypertensive drug, though used in managing hypertension, is not specifically indicated for the prevention of preeclampsia.
- **Option C:** This option does not directly relate to a commonly recognized treatment or preventive measure for preeclampsia.

## **Clinical Pearl / High-Yield Fact**
A key point to remember is that **low-dose aspirin (75-100 mg/day)** is recommended for pregnant women at high risk of preeclampsia, as it has been shown to reduce the risk of developing preeclampsia and its complications.

## **Correct Answer:** . Low-dose aspirin