**Core Concept**
The Ujjwala scheme is a government initiative aimed at combating human trafficking and providing support to victims of trafficking for commercial sexual exploitation. This scheme focuses on the prevention of trafficking, rescue and rehabilitation of victims, and prosecution of traffickers.

**Why the Correct Answer is Right**
The Ujjwala scheme is designed to prevent human trafficking by identifying high-risk areas and populations, providing awareness and education to the public, and establishing a network of helplines and support services for victims. The scheme also aims to prevent trafficking by addressing the root causes of exploitation, such as poverty and lack of education. By providing support and resources to victims, the scheme helps to prevent further exploitation and promotes their rehabilitation and reintegration into society.

**Why Each Wrong Option is Incorrect**
**Option A:** This option is incorrect because the Ujjwala scheme is not primarily focused on child labor prevention, although it may address some related issues.
**Option B:** This option is incorrect because the scheme is not specifically designed to prevent organ trafficking, which is a different form of exploitation.
**Option C:** This option is incorrect because the Ujjwala scheme is not primarily focused on preventing female infanticide, which is a different social issue.

**Clinical Pearl / High-Yield Fact**
The Ujjwala scheme is a critical initiative in India's efforts to combat human trafficking, and it highlights the importance of a comprehensive approach to prevention, rescue, and rehabilitation.

**Correct Answer:** D.