**Core Concept**
The National AIDS Control Organization (NACO) launched a national initiative to address the growing burden of pediatric HIV/AIDS in India. This initiative aimed to improve the diagnosis, treatment, and care of children living with HIV.

**Why the Correct Answer is Right**
The correct answer is related to the National Pediatric Initiative on HIV/AIDS, which was launched by NACO to reduce the incidence of mother-to-child transmission of HIV and provide comprehensive care to children affected by HIV. This initiative involved the development of guidelines for the diagnosis and treatment of pediatric HIV, as well as the establishment of pediatric HIV treatment centers across the country.

**Why Each Wrong Option is Incorrect**
* **Option A:** This option is incorrect because NACO has not launched a national initiative specifically on pediatric TB.
* **Option B:** This option is incorrect because NACO launched the National Tuberculosis Elimination Program (NTEP), but it is not a pediatric-specific initiative.
* **Option C:** This option is incorrect because NACO has not launched a national initiative specifically on pediatric cancer.

**Clinical Pearl / High-Yield Fact**
It's essential to remember that the National Pediatric Initiative on HIV/AIDS was launched to address the significant gap in pediatric HIV care in India, and it has been instrumental in reducing the number of new HIV infections among children.

**Correct Answer:** D.