A. World Freedom Day
B. United Nations Day for South-South Cooperation
C. Labour Day
D. World Hello Day
✅ The correct answer is option D.
World Hello Day is a secular holiday observed annually on 21 November, to express that conflicts should be resolved through communication rather than the use of force.
World Hello Day is a secular holiday observed annually on 21 November, to express that conflicts should be resolved through communication rather than the use of force.