## **Core Concept**
Goodell's sign is a clinical sign related to obstetrics and gynecology. It refers to the softening of the cervix during early pregnancy. This sign is one of the earliest indications of pregnancy.

## **Why the Correct Answer is Right**
The correct answer, **B. Softening of cervix**, is right because Goodell's sign specifically describes the change in the cervix during early pregnancy, where it becomes softer due to increased vascularity and edema. This change is detectable upon a gynecological examination.

## **Why Each Wrong Option is Incorrect**
- **Option A:** This option is incorrect because it does not accurately describe Goodell's sign.
- **Option C:** This option is incorrect as it does not relate to the definition of Goodell's sign.
- **Option D:** This option is incorrect because it does not describe the softening of the cervix.

## **Clinical Pearl / High-Yield Fact**
A key point to remember is that Goodell's sign is one of the early presumptive signs of pregnancy, typically noticeable around 6-8 weeks of gestation. It is an important clinical finding, but it must be considered in conjunction with other signs and symptoms of pregnancy for an accurate diagnosis.

## **Correct Answer:** . **B. Softening of cervix**