**Core Concept**
The primary health care concept emphasizes the importance of accessible, comprehensive, and community-based healthcare services, focusing on prevention, health promotion, and disease management at the grassroots level.

**Why the Correct Answer is Right**
The primary health care concept was first promoted by the World Health Organization (WHO) through the Declaration of Alma-Ata in 1978. This declaration emphasized the need for integrated, community-based healthcare services that cater to the health needs of all people, particularly in developing countries. The concept of primary health care was further reinforced by the Ottawa Charter for Health Promotion in 1986, which highlighted the importance of health promotion, disease prevention, and community participation in healthcare.

**Why Each Wrong Option is Incorrect**
**Option A:** The World Medical Association (WMA) is an international organization that promotes medical ethics and human rights, but it is not associated with the primary health care concept.
**Option B:** The World Health Organization (WHO) is correct, but the other options are incorrect.
**Option C:** The World Federation of Public Health Associations (WFPHA) is a global network of public health organizations, but it did not promote the primary health care concept in the same way as the WHO.

**Clinical Pearl / High-Yield Fact**
The Declaration of Alma-Ata is considered a landmark document in the history of global health, emphasizing the importance of community-based healthcare services and the role of primary health care in achieving health for all.

**Correct Answer: C. World Health Organization (WHO). The World Health Organization (WHO) was the first to promote and bring forward the primary health care concept in true sense.**