**Core Concept**
The Alma Ata conference was a significant global health event that aimed to promote primary healthcare and health for all. It was a landmark conference that emphasized the importance of universal access to essential healthcare services, particularly in developing countries.

**Why the Correct Answer is Right**
The Alma Ata conference was held in 1978 in Alma-Ata, Kazakhstan, which was then part of the Soviet Union. The conference was a response to the growing concern about the disparities in healthcare access and outcomes worldwide. The Declaration of Alma-Ata, adopted during the conference, outlined the principles of primary healthcare, including health promotion, disease prevention, and access to essential healthcare services.

**Why Each Wrong Option is Incorrect**
* **Option A:** The conference was not held in New Delhi, India, although it is a major center for global health initiatives.
* **Option B:** The Alma Ata conference was not held in Geneva, Switzerland, which is the headquarters of the World Health Organization (WHO).
* **Option C:** The conference was not held in Moscow, Russia, although it was a significant event in the Soviet Union.

**Clinical Pearl / High-Yield Fact**
The Alma Ata conference emphasized the importance of community participation and involvement in healthcare planning and delivery, which is a key principle of primary healthcare.

**Correct Answer: C. Alma-Ata, Kazakhstan.**