**Core Concept**
The National AIDS Control Organization (NACO) supplies antiretroviral drugs to prevent mother-to-child transmission (PMTCT) of HIV, which is a critical component of HIV prevention and treatment strategies. This involves the use of antiretroviral therapy (ART) to reduce the viral load in HIV-positive pregnant women, thereby preventing HIV transmission to the fetus.

**Why the Correct Answer is Right**
NACO supplies antiretroviral drugs such as Nevirapine, Lamivudine, and Zidovudine as part of the PMTCT program. These drugs work by inhibiting the replication of HIV, thereby reducing the viral load in the mother's blood and preventing the transmission of HIV to the fetus. The use of these antiretroviral drugs has been shown to significantly reduce the risk of HIV transmission from mother to child, making them an essential component of PMTCT programs.

**Why Each Wrong Option is Incorrect**
* **Option A:** Not applicable, as this option is missing.
* **Option B:** This option is incorrect as the specific antiretroviral drugs supplied by NACO are not mentioned.
* **Option C:** This option is incorrect as the specific antiretroviral drugs supplied by NACO are not mentioned.
* **Option D:** This option is incorrect as the specific antiretroviral drugs supplied by NACO are not mentioned.

**Clinical Pearl / High-Yield Fact**
The NACO-supplied antiretroviral drugs for PMTCT are typically given in a single dose to the mother at the time of labor and to the newborn within 72 hours of birth, in addition to antiretroviral therapy for the mother throughout pregnancy.

**Correct Answer:** C.