A. World Radio Day
B. World Cancer Day
C. Darwin Day
D. World NGO Day

Background about World Cancer Day

World Cancer Day is observed every year on 4 February to raise awareness about cancer prevention, early detection, treatment, and care. It is led by the Union for International Cancer Control (UICC) and supported by the World Health Organization (WHO).

The day encourages governments, healthcare professionals, and communities to work together to reduce the global burden of cancer through education, screening, and improved access to treatment.