"World Water Day" is observed on:

• 4th March
• 16th March
• 22nd March
• 27th March
Correct Option: C  [ 22nd March ]

Remark:

28 September is observed as:

• World Standards Day
• World Television Day
• World Rabies Day
• World Day for War Orphans
Correct Option: C  [ World Rabies Day ]

Remark: