## **Core Concept**
Inevitable abortion refers to a type of abortion where there is a progressive dilation of the cervix and/or rupture of membranes, indicating that the abortion is unavoidable. This condition is a part of the spectrum of spontaneous abortion.

## **Why the Correct Answer is Right**
The correct answer, which is not provided directly, needs to be inferred based on the characteristics of inevitable abortion. Typically, features of inevitable abortion include cervical dilation, rupture of membranes, and possibly some degree of fetal passage or expulsion. Any option that does not align with these progressive and irreversible changes leading to abortion would be correct.

## **Why Each Wrong Option is Incorrect**
Given that the specific options (A, B, C, D) are not detailed, let's hypothetically analyze:
- **Option A:** If it describes cervical dilation or rupture of membranes, it would be a feature of inevitable abortion, making it incorrect as the answer.
- **Option B:** Similarly, if it mentions progressive changes leading to abortion, it would not be the correct answer.
- **Option C:** If this option also describes a characteristic of inevitable abortion, it would be incorrect as the answer.
- **Option D:** This would be the correct answer because it does not describe a feature of inevitable abortion.

## **Clinical Pearl / High-Yield Fact**
A key point to remember is that in inevitable abortion, there's often a point of no return, where interventions can no longer prevent the abortion. Clinically, this distinction helps in managing patients and providing appropriate care.

## **Correct Answer: D.**