**Core Concept:** World Health Day is an annual event organized by the World Health Organization (WHO) to promote global health awareness and education. It is celebrated on April 7th, which is also the founding date of WHO.

**Why the Correct Answer is Right:** The correct answer is "Health for All" because it represents the main theme of the 1976 World Health Day, which aimed to emphasize the importance of accessible and equitable healthcare for all individuals worldwide, regardless of socio-economic status or geographic location.

**Why Each Wrong Option is Incorrect:**
A. **Option A: Health and Disease Prevention:** Although prevention is a key aspect of global health, the specific theme in 1976 did not focus on prevention alone.
B. **Option B: Health and Education:** While education plays a crucial role in promoting health, the theme did not revolve solely around health education.
C. **Option C: Health and Development:** While development is essential for improving health outcomes, the theme did not emphasize health in relation to development specifically.
D. **Option D: Health and Technology:** Although technology has a significant impact on healthcare, the theme did not solely revolve around the advances in medical technology.

**Clinical Pearl:**
**Correct Answer:** Health for All

**World Health Day 1976:** The "Health for All" theme was chosen to emphasize the role of healthcare professionals, governments, and communities in ensuring equitable access to healthcare services and resources. This message resonated with the global health community and contributed to raising awareness about health disparities and the importance of addressing them. The theme has since been used in subsequent World Health Day campaigns, highlighting the ongoing efforts to improve health outcomes worldwide.

**Health for All** promotes the idea that everyone should have access to essential health services, including promotive, preventive, curative, and rehabilitative services, without suffering financial hardship due to costs. This concept aligns with the WHO's mission to improve global health and reduce health inequalities.