The correct answer is: World Red Cross Day.
World Red Cross Day is observed on 8 May every year to commemorate the birth of Henry Dunant, the founder of the International Committee of the Red Cross (ICRC). The ICRC is an independent humanitarian organization that provides assistance to people affected by armed conflict and other violence. It was founded in 1863 by Henry Dunant, a Swiss businessman who was appalled by the suffering he saw during the Battle of Solferino in Italy.
World Red Cross Day is an opportunity to raise awareness of the ICRC’s work and to promote the principles of humanity, impartiality, neutrality, independence, voluntary service, unity, and universality. It is also a time to celebrate the achievements of the Red Cross movement, which includes the ICRC, the International Federation of Red Cross and Red Crescent Societies (IFRC), and 192 National Red Cross and Red Crescent Societies.
The other options are incorrect because:
- World Standard Day is observed on 14 October.
- Commonwealth Day is observed on the second Monday in March.
- World Telecommunication Day is observed on 17 May.